System for measuring and treating the air quality in an enclosed space

Abstract

The invention relates to a system for measuring and treating the air quality in an enclosed space (1), comprising: • - an air treatment module (2) comprising at least one filter (21), this treatment module (2) being intended to be placed on a ventilation unit (20) of the enclosed space (1) so as to filter the air in this enclosed space (1), • - a portable housing (3) intended to be placed in the enclosed space (1) and to measure a pollutant concentration in the air; this portable housing (3) being equipped with a processing unit (36), a rechargeable battery (31), at least one pollutant sensor (32), and a wireless communication module (38), • - a mobile telephone (4) containing an analysis application capable of communicating with said wireless communication module (38) and of receiving measurements from the portable housing (3) and of emitting an alarm signal when a pollutant concentration threshold is reached.

Description

DESCRIPTION TITLE: SYSTEM FOR MEASURING AND PROCESSING AIR QUALITY IN AN ENCLOSED SPACE. Technical field

[0001] The present invention relates to a system for measuring and processing air quality in an enclosed space such as, for example, but not limited to, a vehicle.

[0002] Generally speaking, the WHO regularly warns about the dangers of air pollution by conducting public awareness campaigns on the health risks.

[0003] According to the ONII, United Nations Member States recognize the need to significantly reduce, by 2030, the number of deaths and illnesses from hazardous chemicals and air, water, and soil pollution and contamination, and to reduce the negative environmental impact of cities per capita, including by paying special attention to air quality. September 7 has been proclaimed as the International Day of Clean Air for blue skies. Information on air quality and management to improve air quality are becoming crucial topics. State of the art

[0004] In air quality management, document US7323146B2 is known, describing an air purification device equipped with a removable filter.

[0005] Home air treatment systems are known, such as Dyson® brand purifiers. Document US11022146 describes a fan capable of purifying air. Such a system is bulky and is intended for use in the home.

[0006] The KS-AP320 is a photocatalytic air purifier from JVC®. This purifier is suitable for transport in a vehicle.

[0007] The present invention aims at a new system for measuring and processing air quality.

[0008] Another aim of the invention is to provide relevant information to the user. Statement of the invention

[0009] At least one of the objections is met with a system for measuring and treating air quality in an enclosed space, comprising: - an air treatment module comprising at least one filter, this treatment module being intended to be placed on a ventilation unit of the enclosed space so as to filter the air in this enclosed space, - a portable box intended to be placed in the enclosed space and to measure a concentration of pollutants in the air; this portable box being equipped with a processing unit, a rechargeable battery, at least one pollutant sensor, and a wireless communication module, - a mobile phone containing an analysis application capable of communicating with said wireless communication module and receiving measurements from the portable box and emitting an alarm signal when a pollutant concentration threshold is reached.

[0010] Advantageously, the enclosed space can be a vehicle or any other confined space such as a room in a home, bedroom, living room, etc., a train carriage, a meeting room, an elevator, an airplane, a sports activity room or other, etc.

[0011] With the system according to the invention, the air quality in the enclosed space such as a vehicle is monitored in real time with feedback to the user via their mobile phone or smartphone.

[0012] The system can detect concentrations of pollutants harmful to health, alert the user to concentration levels above thresholds recognized as dangerous for humans and finally treat locally in the user's direct environment, the air breathed by this user to bring these pollutant concentrations back to values ​​below these critical thresholds.

[0013] These thresholds depend on the type of pollutant and local legislation.

[0014] The portable box has the advantage of being able to be placed anywhere in the enclosed space, such as a vehicle. It can remain in the enclosed space at all times or be associated with a given user who keeps it with them outside the enclosed space. Ideally, the analysis application is designed in different versions, each compatible with a specific software platform such as Android® or Apple®, or others.

[0015] When it comes to a vehicle, the treatment module is intended to be placed on a ventilation unit of the vehicle so as to filter the air entering the vehicle. The treatment module can therefore advantageously be placed on the ventilation unit or HVAC (for "heating, ventilation and air-conditioning" in English).

[0016] For any type of enclosed space, this treatment module can be permanently operational, i.e., it can consist of non-active filters mechanically filtering the air passing through the ventilation unit. This treatment module can also include active filters that only operate in response to a setpoint. For example, the activation of the active filters can be linked to the start-up of the ventilation unit. Thus, in the event of pollution, a command to start the ventilation, with or without air conditioning or heating, simultaneously activates the operation of the treatment module.

[0017] For example, the alarm signal may be an invitation to the user to close the windows of the enclosed space and activate the ventilation system, which automatically triggers filtering by the treatment module.

[0018] A function may be provided in the analysis application or in the portable box capable of communicating with the ventilation system of the enclosed space and enabling ventilation to be automatically activated at each alarm signal or when the user has not activated ventilation after a predetermined period following an alarm signal.

[0019] The processing module can be a device that is always operational. It is the start-up of the ventilation system that causes outside air to pass through the processing module. Thus, for example, in the case of a vehicle, starting the vehicle's ventilation involves filtering the air entering the passenger compartment through the processing module.

[0020] According to an advantageous characteristic of the invention, the portable housing may comprise an integrated fan for directing the air outside the housing towards said at least one sensor. Thus, the measurement of a concentration of pollutants is carried out on the ambient air in the enclosed space and not on air which would be enclosed in the housing. Ideally, a silent fan without blades is used.

[0021]

[0022] Advantageously, said at least one pollutant sensor may comprise a particle sensor intended to trap particles of a size between 1 and 10 microns.

[0023] Such a sensor makes it possible to measure the concentration of fine particles that have a long-term impact on the user's cardiovascular health. Regular exposure to this type of particle increases the risk of contracting cardiovascular and respiratory diseases, and even lung cancer.

[0024] According to the invention, said at least one pollutant sensor may comprise a nitrogen oxide (Nox) sensor.

[0025] Such a sensor makes it possible to measure the concentration of Nox, which can cause irritation to the eyes, nose and throat.

[0026] Said at least one pollutant sensor may further comprise a volatile organic compound (VOC) sensor.

[0027] According to one embodiment of the invention, said at least one pollutant sensor may also comprise a temperature sensor and / or a humidity sensor. The temperature and / or humidity measurements may in particular be used to weight the pollutant concentration measurements.

[0028] The system according to the invention thus provides a set of sensors capable of exhaustively detecting a set of components making it possible to determine an overall and significant level of pollution.

[0029] According to an advantageous characteristic of the invention, the portable box may include a visual indicator to signal an overall pollution level. Such an indicator placed on the portable box makes it possible to immediately visualize the level of air quality as well as the evolution of this pollution.

[0030]

[0031] According to an advantageous characteristic of the invention, the portable box may comprise a reset button making it possible to determine, for each pollutant measured, an initial concentration level.

[0032] Furthermore, said analysis application may include a reset command to consider the next measured concentration level for each pollutant as an initial concentration level.

[0033] It is thus possible to reset the measurements either directly on the portable box or on the mobile phone.

[0034] The reset can, for example, be triggered by a given event, such as getting into the vehicle, starting a new journey, closing or opening a window or door in the enclosed space, a person entering or leaving the enclosed space, the start of a weather / pollution alert, or any other specific moment. An initial measurement can therefore be considered when the treatment module is inactive. In this case, it can be assumed that the ambient air is identical to the air outside the enclosed space. Then, while driving, if the treatment module is activated, the measurements taken make it possible to verify the effectiveness of the filtering by the treatment module.

[0035] Consideration may be given to using an external pollutant sensor. This could be a sensor placed in the ventilation unit to measure pollutants upstream of the treatment module, i.e. measuring pollutants in the outside air entering the enclosed space or the passenger compartment in the case of a vehicle, before passing through the treatment module. It can also be a pre-existing sensor installed elsewhere in the enclosed space or for a vehicle, on the vehicle, for example on the bodywork or on the roof panel of a taxi. The external pollutant sensor is able to communicate, wired or wireless, in particular via Bluetooth, with the analysis application of the mobile phone. This external pollutant sensor can thus transmit external pollution data which can be used for mapping or to measure the effectiveness of the filtering of the treatment module in comparison with the pollution level in the enclosed space (passenger compartment for a vehicle).

[0036] The external pollutant sensor may include all or part of the components of the portable housing. Preferably, it is not portable but integrated, it is powered by a power cable and a fan is not required.

[0037] Advantageously, the external pollutant sensor may also comprise a pressure sensor for measuring the pressure at least downstream of the treatment module (an additional measurement upstream is possible). Such a measurement makes it possible to monitor the pressure drop of the air leaving the treatment module and thus estimate, by means of a parametric curve for example, the level of fouling of the treatment module and deduce from this when to replace the filters of the treatment module.

[0038] For a given pollutant, the initial level serves as a reference level in relation to successive measurements. This makes it possible to check whether the pollution level is deteriorating or improving.

[0039]

[0040] Advantageously, the processing unit of the portable box can be configured to transmit pollutant concentration levels continuously or at regular time intervals to the analysis application contained in the mobile phone.

[0041] Concentration levels can therefore be transmitted from the portable box to the mobile phone continuously or discreetly.

[0042] According to an advantageous characteristic of the invention, said at least one filter may comprise a coarse filter and a fine filter, the coarse filter may be a 50% “iso coarse” type pre-filter and the fine filter may be a high-performance filter intended to filter at least 80% of particles of 1 micron and less.

[0043]

[0044] The purpose of the treatment module is to filter gases entering the passenger compartment, particularly via the ventilation system air intake. The pre-filter meets the G3 standard in the EN779 2012 regulation. The high-performance filter can be of the EPM1_80% type, allowing the elimination of up to 80% of particles of 1 micrometer and less, or meeting the F9 standard in the EN779 2012 regulation.

[0045]

[0046] According to an advantageous characteristic of the invention, said analysis application can be configured to display current concentration levels of each pollutant as well as deviations between the current levels and the initial levels.

[0047] According to an advantageous characteristic of the invention, the processing module and the ventilation unit can be integrated into a transportable air purification box provided with wireless reception means for receiving instructions from the analysis application of the mobile phone, these instructions being intended to control the operation of the transportable air purification box. The communication means can for example be bidirectional for efficient communication.

[0048] Such a portable box can be placed in a room to filter the air based on the air quality measured by the portable box.

[0049] It is also possible to consider that the filtering instructions come directly from the portable box.

[0050] These instructions can be the start or stop of a filtering, the acceleration of a filtering, the control of a type of filtering according to the pollutant detected, the control of a predetermined filtering profile. The profile can be a flow rate and / or type of pollutant according to time,...

[0051]

[0052] According to another aspect of the invention, there is provided a vehicle equipped with an air quality measurement and processing system as described above.

[0053] For example, the vehicle may or may not be pre-equipped with the processing module. The portable box may be associated with the vehicle, i.e. always contained in the vehicle, or may be independent.

[0054] The mobile phone can advantageously be the user's mobile phone in which the analysis application has been downloaded.

[0055]

[0056] A method for measuring and treating air quality in an enclosed space is also provided, comprising the following steps: - measurement of a concentration level of ambient air pollutants in the enclosed space by means of a portable box equipped with a processing unit, a rechargeable battery, at least one pollutant sensor, and a wireless communication module, - transmission of the concentration level of each pollutant to a mobile phone, - display on the mobile phone of the concentration level of each pollutant and emission of an alarm signal when a pollutant concentration threshold is reached, - control of air filtration in the enclosed space by means of a ventilation unit for the enclosed space in response to instructions from the mobile phone.

[0057] According to the invention, the method may further comprise a transmission of the concentration levels of each pollutant to a remote server and a development within this remote server of a pollution map.

[0058] Such an achievement makes it possible to recover numerous concentration levels from several vehicles over a given period. These concentration levels make it possible to create a map displaying an instantaneous or pre-recorded pollution level for each road or area.

[0059] When communication with a remote server is possible, the mobile phone can receive data relating to outdoor air pollution levels at the location of the vehicle. This is made possible by the fact that this remote server can develop a map of the outdoor pollution level from data measured by a network of communication devices such as parking terminals or any other community capable of holding data on the outdoor pollution level. The analysis application in the mobile phone can compare the outdoor air pollution level to the current pollution level in the passenger compartment and, if necessary, prompt the user to activate their ventilation system if necessary. Brief description of the drawings

[0060] Other advantages and features of the invention will become apparent upon reading the detailed description of implementations and embodiments which are in no way limiting, and the following appended drawings. [FIG. 1] Figure 1 is an overall schematic view of a system according to the invention, [FIG. 2] Figure 2 is a schematic view of a treatment module arranged on a ventilation unit according to the invention, [FIG. 3] Figure 3 is a schematic view of some of the constituent components of a portable case according to the invention, [FIG. 4] Figure 4 is a schematic view of a smartphone displaying pollutant concentration levels according to the invention, [FIG. 5] Figure 5 is a general schematic view illustrating a centralized server and several vehicles each equipped with a system according to the invention, and [FIG. 6] Figure 6 is a general schematic view illustrating a transportable housing in a room. Detailed description of the figures

[0061] It is understood that the embodiments which will be described below are in no way limiting. In particular, it is possible to imagine variants of the invention comprising only a selection of characteristics described below isolated from the other characteristics described, if this selection of characteristics is sufficient to confer a technical advantage or to differentiate the invention compared to the state of the prior art. This selection includes at least one preferably functional characteristic without structural detail, or with only part of the structural details if this part alone is sufficient to confer a technical advantage or to differentiate the invention compared to the state of the prior art.

[0062] Although the invention is not limited thereto, we will now describe a system according to the invention applied in a vehicle. Indeed, the invention is applicable to any confined space.

[0063] In Figure 1, a vehicle 1 is shown defining a closed space inside it. The system according to the invention comprises a treatment module 2 arranged inside the vehicle and intended to filter the air coming from outside and entering the vehicle. Ideally, this treatment module is arranged on the main air inlet of the vehicle, for example on the ventilation unit or more generally on the heating, ventilation and air conditioning system or HVAC (for "heating, ventilation and air-conditioning" in English).

[0064] The portable box 3 is a nomadic device for measuring ambient air pollution within the vehicle. In Figure 1, it is placed on the rear shelf of the vehicle, opposite the treatment module. Placing the portable box at a distance makes it possible to check the capacity of the treatment module to filter the air up to locations far from the air intake. Obviously, the portable box 3 can be placed anywhere inside the passenger compartment. Ideally, a cylindrical portable box is provided, typically with dimensions identical, at least in circumference, to a can, a beverage container. Indeed, vehicles are generally equipped with a location to hold one or more cans. This location can be at the front of the vehicle or at the rear.

[0065] The portable housing 3 is suitable for continuously or discretely measuring, at predetermined time intervals, the concentration level of at least one pollutant. To provide meaningful information on air quality, it is intended to accurately measure the following pollutants: fine particles, nitrogen oxides NOx and volatile organic compounds VOCs. It is also intended to measure meteorological factors such as temperature and humidity.

[0066] The measurements taken by the portable box 3 are transmitted to a mobile phone 4 or smartphone for analysis. The user is thus informed in real time of the pollution level in the passenger compartment of his vehicle. He can then decide to act on the processing module depending on the situation.

[0067] The mobile phone 4 is advantageously equipped with an analysis application capable of restoring detailed measurements of each pollutant continuously or at a configurable frequency. The analysis application is configured to alert the user of any possible exceedance of alert thresholds.

[0068]

[0069] In Figure 2, we can see a ventilation unit 20 or HVAC of the vehicle 1 intended to introduce outside air 23 into the passenger compartment. This air can be introduced into the passenger compartment with or without temperature regulation (heating / air conditioning).

[0070] According to the invention, the treatment module 2 is placed at the outlet of the HVAC 20 so that the outside air 23 is filtered through the treatment module 2 and enters the passenger compartment in the form of filtered air 24.

[0071] Treatment module 2 includes a 50% coarse type pre-filter 21 (G3 in the EN779 2012 regulation), and a high-performance filter 22 type EPM1_80%, a fine filter capable of eliminating up to 80% of particles of 1 micrometer and less (or F9 in the EN779 2012 regulation).

[0072] Figure 3 illustrates very schematically the portable box 3 according to the invention capable of measuring, at a frequency that can be modified by calibration, the concentrations of pollutants present in the direct environment where the portable box is located. It can be a portable box in the format of a 50cl beverage can.

[0073] This portable box 3 integrates a battery 31 rechargeable via a LISB-C connector. This battery powers all the electronic components within the portable box 3.

[0074] It also includes a sensor to measure particles of 1, 2.5, 4 & 10 microns, for example a sensor of the SENSIR.ION® brand type SEN55. A second sensor 32 measures the concentrations of NOx and VOCs. For example, a sensor of the SENSIR.ION® brand type SG41 can be used.

[0075] A fan 33 integrated into the portable housing 3 makes it possible to circulate the air present on the direct periphery of the portable housing inside the latter, so that the air flow circulates near the sensors, then is evacuated. The measurements carried out therefore relate to the ambient air in direct contact with the portable housing, and not simply stagnant air within a measuring cell of each sensor.

[0076] Such a portable box is suitable for enclosed volumes, for example less than 3 m3, of the mobile machine cabin type or not such as for a construction machine, a crane, a motor vehicle, a truck, an enclosed observation post, a cabin-type meeting room, inside the house

[0077] A temperature sensor 34 and a humidity sensor 35 are also provided.

[0078]

[0079] The portable housing 3 also includes a processing unit 36 ​​in the form of an electronic card integrating a microprocessor or a microcontroller making it possible to control the various electronic components.

[0080] The processing unit 36 ​​is configured to construct a local pollution indicator (LPI), combining the different measured channels. By For example, this local pollution indicator is a value calculated in real time from a formula involving a Nox value, a VOC value, a particle quantity value, a temperature value and a humidity value. The formula can be based on a linear function or not and be derived from an environmental standard of the country in which the vehicle is driven.

[0081] This ILP is accessible to the user via a visual indicator 37 which is an LED located in the upper part of the portable box 3. Air is defined as polluted if the ILP exceeds a predetermined threshold SI, and the visual indicator 37 then displays a red light to indicate that this threshold SI has been exceeded. Similarly, if the ILP is lower than a predetermined threshold S2, the visual indicator 37 turns green, indicating that the air is of satisfactory quality according to the measured levels. Between SI and S2, an intermediate state of pollution is materialized by an orange light. Thus, the user instantly sees the level of pollution in his vehicle as well as its evolution.

[0082] When multiple particle types are measured, each particle type has a minimum pollution threshold and a maximum pollution threshold; these thresholds may differ depending on the particle type. In this case, the SI and S2 thresholds can advantageously be in the form of conditions. For example, SI can be the condition stipulating that each measured particle type exceeds its maximum pollution threshold. S2 can be the condition stipulating that each measured particle type is below its minimum pollution threshold. When neither SI nor S2 is met, then the indicator is orange. This may be the case when, for example, particles 1, 2.5 and 4 have exceeded their respective maximum thresholds, but particles 10 have remained below their maximum pollution threshold.

[0083] A Bluetooth 38 communication module is also provided to exchange data with the analysis application contained in the smartphone.

[0084] There is also a button 39 to reset the measurements. Typically, when the user takes possession of their vehicle, they open the doors and get into the passenger compartment. The air inside the vehicle is then identical to the air outside. Pressing the reset button allows measure the different concentration levels of pollutants and possibly meteorological parameters. Successive measurements can be compared with the initial measurements to determine whether overall pollution is increasing or decreasing and to estimate the effectiveness of the treatment module.

[0085] Quantitatively measuring pollutant concentrations allows the level of fouling of the coarse pre-filter and / or fine filter to be estimated. To achieve this, simultaneous operation between the portable housing and the treatment module is provided. This mode of operation can provide an indication for preventive replacement of filters and pre-filters.

[0086] Figure 4 shows a smartphone equipped with an analysis application according to the invention. This application is capable of communicating via Bluetooth with the portable box.

[0087] The information received from the portable box is the various measurements of pollutants and meteorological parameters.

[0088] The analysis application is able to display the concentration level for each pollutant as can be seen in Figure 4. For each type of particle size, i.e. 10, 4, 2.5 and 1 micro, the value in pg / m is displayed. 3and a cursor 41 allows you to position yourself between a minimum value and a maximum value.

[0089] For example, for 10 micron particles, a value range of 0 to 80 pg / m is expected. 3 , with a threshold of 45.

[0090] For example, for particles of 4, 2.5 and 1 micron, a range of values ​​from 0 to 50 pg / m is provided for each size type. 3 , with a threshold of 15.

[0091] In the same way, for each Nox or VOC pollutant, a value is indicated according to an index varying respectively from 1 to 100 for Nox and from 1 to 500 for VOCs with a visualization by cursor 41. The threshold can be set to 1 for Nox and to 100 for VOCs.

[0092] These values ​​are displayed in real time or at a rate to be configured.

[0093] It is also planned to assign each pollutant concentration value a color code which can be the same as that used to position relative to the SI and S2 thresholds or any other more detailed color code as can be seen in Figure 4 with the icons 42. The average of all six color codes in Figure 4 is represented by 43 at the top of the smartphone display screen. This color code 43 can be representative of the local pollution indicator ILP.

[0094]

[0095] A “RESET” button 44 allows the measurements to be reset. This “RESET” function can also be implemented directly from the handheld unit.

[0096] The temperature and humidity values ​​are also taken and displayed on the smartphone screen.

[0097] It is also planned to display the charge level of the battery contained in the portable case.

[0098] The analysis application is a smartphone application that allows you to display detailed measurements of each pollutant. This restitution can allow you to view for each pollutant the current value, the initial measured value which is stored at the start of acquisition as well as the limit values, so as to determine whether the current level is acceptable or not.

[0099]

[0100] In Figure 5, several vehicles 6, 7, 8 can be seen, equipped with the system according to the invention, i.e. a processing module, a portable box and a mobile telephone. The mobile telephone according to the invention comprises the analysis application configured to transmit, continuously, regularly or on request, data to a central server 5 via the Internet.

[0101] The data transmitted from the vehicles to the central server includes the concentration levels of pollutants, possibly meteorological parameters, and location data from each mobile phone. The server 5 thus centralizes a set of data that can be processed to create maps that can be used in navigation systems, in forecasting systems meteorological, among quality monitoring operators, among health prevention operators, ...

[0102] The central server is also able to process useful information to send to the user's mobile phone.

[0103]

[0104] The system according to the invention is a complete technical solution dealing with air quality, making it possible to detect concentrations of pollutants harmful to health, to alert the user to concentration levels above the thresholds recognized as dangerous for humans and finally to treat locally in the direct environment of the user, the air breathed by this user to bring these pollutant concentrations to values ​​below these critical thresholds.

[0105] In Figure 6, the enclosed space is a child's bedroom, but it can be any other room in a home. A bedroom 61 is shown comprising a bed in which a child 62 is lying. The portable box 3 is placed on a table at the height of the child's head, for example. The portable box 3 can communicate with the mobile phone 4 which is located in the bedroom or preferably in another room. In the event of pollution, an audible and / or visual alarm signal can be emitted from the mobile phone 4. The user can thus trigger the air purification by controlling the transportable box 63.

[0106] Advantageously, the transportable housing 63 is arranged near or directly on an air inlet in the chamber.

[0107] The instruction commanding the portable box 63 to start filtering can come directly from the portable box 3. This can be a setting in the mobile phone application.

[0108] The transportable housing 63 may comprise a receptacle for receiving the portable housing with, for example, a function for recharging the battery of the portable housing and / or communication with or without contact between the two housings.

[0109] Of course, the invention is not limited to the examples just described. Many modifications can be made to these examples without departing from the scope of the present invention as described.

Claims

CLAIMS 1. System for measuring and treating air quality in an enclosed space, comprising: - an air treatment module comprising at least one filter, this treatment module being intended to be placed on a ventilation unit of the enclosed space so as to filter the air in this enclosed space, - a portable box intended to be placed in the enclosed space and to measure a concentration of pollutants in the air; this portable box being equipped with a processing unit, a rechargeable battery, at least one pollutant sensor, and a wireless communication module, - a mobile phone containing an analysis application capable of communicating with said wireless communication module and receiving measurements from the portable box and emitting an alarm signal when a pollutant concentration threshold is reached.

2. System according to claim 1, characterized in that the portable housing comprises an integrated fan for directing air outside the housing towards said at least one sensor.

3. System according to claim 1 or 2, characterized in that said at least one pollutant sensor comprises a particle sensor intended to trap particles of a size between 1 and 10 microns.

4. System according to any one of the preceding claims, characterized in that said at least one pollutant sensor comprises a nitrogen oxide (Nox) sensor.

5. System according to any one of the preceding claims, characterized in that said at least one pollutant sensor comprises a volatile organic compound (VOC) sensor.

6. System according to any one of the preceding claims, characterized in that said at least one pollutant sensor comprises a temperature sensor and / or a humidity sensor.

7. System according to any one of the preceding claims, characterized in that the portable box comprises a visual indicator to signal an overall pollution level.

8. System according to any one of the preceding claims, characterized in that the portable box comprises a reset button making it possible to determine an initial concentration level for each pollutant measured.

9. System according to any one of the preceding claims, characterized in that said analysis application comprises a reset command making it possible to consider the next concentration level measured for each pollutant as an initial concentration level.

10. System according to any one of the preceding claims, characterized in that the processing unit of the portable box is configured to transmit continuously or at regular time intervals pollutant concentration levels to the analysis application contained in the mobile telephone.

11. System according to any one of the preceding claims, characterized in that said at least one filter comprises a coarse filter and a fine filter, the coarse filter is a 50% “iso coarse” type pre-filter and the fine filter is a high performance filter intended to filter at least 80% of particles of 1 micron and less.

12. System according to any one of the preceding claims, characterized in that said analysis application is configured to display current levels of concentration of each pollutant as well as deviations between the current levels and initial levels.

13. System according to any one of the preceding claims, characterized in that the enclosed space is a vehicle.

14. System according to claim 13, characterized in that the treatment module is intended to be placed on a ventilation unit of the vehicle so as to filter the air entering the vehicle.

15. System according to any one of claims 1 to 13, characterized in that the processing module and the ventilation unit are integrated into a transportable air purification box provided with wireless reception means for receiving instructions from the analysis application of the mobile phone, these instructions being intended to control the operation of the transportable air purification box.

16. Vehicle equipped with an air quality measurement and treatment system according to any one of the preceding claims.

17. Method for measuring and treating air quality in an enclosed space, comprising the following steps: - measurement of a level of concentration of ambient air pollutants in the enclosed space by means of a portable box equipped with a processing unit, a rechargeable battery, at least one pollutant sensor, and a wireless communication module, - transmission of the concentration level of each pollutant to a mobile phone, - display on the mobile phone of the concentration level of each pollutant and emission of an alarm signal when a pollutant concentration threshold is reached, - control of air filtration in the enclosed space by means of a ventilation unit for the enclosed space in response to instructions from the mobile phone.

18. Method according to the preceding claim, characterized in that it further comprises a transmission of the concentration levels of each pollutant to a remote server and a development within this remote server of a pollution map.

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