Air purification control method and air purifier

Abstract

The invention relates to an air purification control method. The method comprises the steps that the indoor formaldehyde concentration and PM2.5 concentration at the current moment are obtained; whether the formaldehyde concentration at the current moment is larger than or equal to the formaldehyde dynamic concentration critical value or whether the PM2.5 concentration at the current moment is larger than or equal to the PM2.5 dynamic concentration critical value is judged, and if any one of the conditions is met, the air purification module is controlled to operate; wherein the formaldehyde dynamic concentration critical value and the PM2.5 dynamic concentration critical value are dynamically adjusted according to the environment parameters at the current moment, the indoor ventilation state and the user behavior time period at the current moment. According to the method, the pollutant concentration critical value is corrected in combination with the outdoor environment, the ventilation state and the use habit of the user, and therefore accurate and dynamic air quality control is achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of air purifiers, and in particular to an air purification control method and an air purifier. Background Art

[0002] As indoor air quality issues become increasingly prominent, air purifiers have become essential equipment in many homes and offices.

[0003] Traditional air purifiers can usually only purify a single pollutant, such as PM2.5 or formaldehyde, and most use fixed purification modes. They are unable to dynamically adjust the purification strategy according to actual environmental changes, resulting in unsatisfactory purification effects or excessive energy consumption.

[0004] In recent years, with the development of sensor technology and intelligent control algorithms, smart air purifiers that can simultaneously monitor and purify multiple pollutants have gradually become a research hotspot. Summary of the Invention

[0005] Based on this, the purpose of the present invention is to overcome the defects or shortcomings of the prior art and provide an air purification control method and an air purifier.

[0006] An air purification control method comprises the following steps:

[0007] Get the current indoor formaldehyde concentration and PM2.5 concentration;

[0008] Determine whether the current formaldehyde concentration is greater than or equal to the formaldehyde dynamic concentration critical value, or whether the current PM2.5 concentration is greater than or equal to the PM2.5 dynamic concentration critical value:

[0009] If any of the above conditions is met, the air purification module is controlled to operate;

[0010] Among them, the dynamic concentration critical values of formaldehyde and PM2.5 are dynamically adjusted according to the current environmental parameters, indoor ventilation status, and the user behavior period at the current moment.

[0011] Compared with the existing technology, the air purification control method described in the present invention corrects the critical value of pollutant concentration by combining the outdoor environment, ventilation status and user usage habits, thereby achieving accurate and dynamic air quality control.

[0012] In one embodiment, obtaining a critical formaldehyde concentration dynamic value based on current environmental parameters, indoor ventilation status, and the current user behavior time period includes the following steps:

[0013] SA1 obtains the actual indoor temperature T and actual relative humidity H at the current moment, and calculates the first formaldehyde dynamic concentration critical value C by the following formula 1,HCHO:

[0014] C 1,HCHO =C 0,HCHO ×(1-α1×(T-T0)×(H-H0))

[0015] Among them, C 0,HCHO is the initial formaldehyde dynamic concentration critical value, α1 is the first formaldehyde concentration adjustment coefficient, which is used to control the influence of temperature and humidity on the critical value; T0 and H0 are the reference temperature and reference humidity;

[0016] SA2 obtains the indoor ventilation status at the current moment and calculates the first formaldehyde dynamic concentration critical value C by the following formula: 1,HCHO Correction is performed to obtain the second formaldehyde dynamic concentration critical value C 2,HCHO :

[0017] C 2,HCHO =C 1,HCHO ×β1

[0018] Wherein, β1 is a second formaldehyde concentration adjustment coefficient, and the value of the second formaldehyde concentration adjustment coefficient β1 is determined by the indoor ventilation state at the current moment;

[0019] SA3 obtains the current time S, determines the user behavior period at the current time S, and calculates the second formaldehyde dynamic concentration critical value C by the following formula: 2,HCHO Correction is performed to obtain the critical value of formaldehyde dynamic concentration C 3,HCHO :

[0020] C 3,HCHO =C 2,HCHO ×γ1

[0021] Wherein, γ1 is a third formaldehyde concentration adjustment coefficient, and the value of the third formaldehyde concentration adjustment coefficient γ1 is determined by the user behavior period at the current moment S.

[0022] In one embodiment, the value of the second formaldehyde concentration adjustment coefficient β1 is determined by the current indoor ventilation state, including:

[0023] If the ventilation state is good, the value range of β1 is (1,2], and the corrected first formaldehyde dynamic concentration critical value C 1,HCHO Equal to the second formaldehyde dynamic concentration critical value C 2,HCHO ;

[0024] If the ventilation state is normal, the value of β1 is 1. At this time, the first formaldehyde dynamic concentration critical value C 1,HCHO Equal to the second formaldehyde dynamic concentration critical value C 2,HCHO ;

[0025] If the ventilation state is poor, the value range of β1 is (0,1), and the corrected first formaldehyde dynamic concentration critical value C 1,HCHO Equal to the second formaldehyde dynamic concentration critical value C 2,HCHO .

[0026] In one embodiment, the value of the third formaldehyde concentration adjustment coefficient γ1 is determined by the user behavior period at the current moment S, including:

[0027] If the current time S is in the user's home period S_in, the value range of γ1 is (0,1];

[0028] If the current time S is in the user's outing period S_out, the value range of γ1 is (1,2];

[0029] At this time, the second corrected formaldehyde dynamic concentration critical value C 2,HCHO Equal to the critical value of formaldehyde dynamic concentration C 3,HCHO .

[0030] In one embodiment, obtaining a PM2.5 dynamic concentration critical value based on current environmental parameters, indoor ventilation status, and the current user behavior time period includes the following steps:

[0031] SC1 obtains the outdoor air quality index A at the current moment and calculates the first PM2.5 dynamic concentration critical value C by the following formula: 1,PM2.5 :

[0032] C 1,PM2.5 =C 0,PM2.5 ×(1+α2×(A-A0))

[0033] Among them, C 0,PM2.5 is the initial PM2.5 dynamic concentration critical value, α2 is the first PM2.5 concentration adjustment coefficient, which is used to control the impact of AQI on the critical value; A0 is the reference air quality index.

[0034] SC2 obtains the indoor ventilation status at the current moment and calculates the first PM2.5 dynamic concentration critical value C by the following formula: 1,PM2.5 Correction is performed to obtain the second PM2.5 dynamic concentration critical value C 2,PM2.5 :

[0035] C 2,PM2.5 =C 1,PM2.5 ×β2

[0036] Wherein, β2 is the second PM2.5 concentration adjustment coefficient, and the value of the second PM2.5 concentration adjustment coefficient β2 is determined by the indoor ventilation state at the current moment;

[0037] SC3 obtains the current time S, determines the user behavior period at the current time, and calculates the second PM2.5 dynamic concentration critical value C by the following formula: 2,PM2.5 Correction is performed to obtain the critical value C of PM2.5 dynamic concentration 3,PM2.5 :

[0038] C 3,PM2.5 =C 2,PM2.5 ×γ2

[0039] Among them, γ2 is the third PM2.5 concentration adjustment coefficient, and the value of the third PM2.5 concentration adjustment coefficient γ2 is determined by the user behavior time period at the current moment.

[0040] In one embodiment, the value of the second PM2.5 concentration adjustment coefficient β2 is determined by the current indoor ventilation state, including:

[0041] If the ventilation state is good, the value range of β2 is (1,2], and the corrected first PM2.5 dynamic concentration critical value C 1,PM2.5 Equal to the second PM2.5 dynamic concentration critical value C 2,PM2.5 ;

[0042] If the ventilation state is normal, the value of β2 is 1. At this time, the first PM2.5 dynamic concentration critical value C 1,PM2.5 Equal to the second PM2.5 dynamic concentration critical value C 2,PM2.5 ;

[0043] If the ventilation state is poor, the value range of β2 is (0,1), and the corrected first PM2.5 dynamic concentration critical value C 1,PM2.5 Equal to the second PM2.5 dynamic concentration critical value C 2,PM2.5 .

[0044] In one embodiment, the value of the third PM2.5 concentration adjustment coefficient γ2 is determined by the user behavior period at the current moment, including:

[0045] If the current time S is in the user's home period S_in, the value range of γ2 is (0,1];

[0046] If the current time S is in the user's outing period S_out, the value range of γ2 is (1,2];

[0047] At this time, the corrected second PM2.5 dynamic concentration critical value C 2,PM2.5 Equal to the PM2.5 dynamic concentration critical value C 3,PM2.5 .

[0048] In one embodiment, the initial formaldehyde dynamic concentration critical value C 0,HcHO The value is 0.08mg / m3 ; The reference temperature T0 is 25°C; the reference humidity H0 is 60%; the first formaldehyde concentration adjustment coefficient α1 is 0.01.

[0049] In one embodiment, the initial PM2.5 dynamic concentration critical value C 0,PM2.5 The value is 75 μg / m 3 ; The reference air quality index A0 is 50, and the first PM2.5 concentration adjustment coefficient α2 is 0.02.

[0050] In addition, the present invention also provides an air purifier, which uses the above-mentioned control method to control the operation of the air purification module.

[0051] For better understanding and implementation, the present invention is described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0052] Figure 1 This is a flow chart of the air purification control method provided by the present invention. DETAILED DESCRIPTION

[0053] The solution of the present invention is described in detail below with reference to the accompanying drawings.

[0054] like Figure 1 As shown, an air purification control method of the present invention includes the following steps:

[0055] Get the current indoor formaldehyde concentration and PM2.5 concentration;

[0056] Determine whether the current formaldehyde concentration is greater than or equal to the formaldehyde dynamic concentration critical value, or whether the current PM2.5 concentration is greater than or equal to the PM2.5 dynamic concentration critical value:

[0057] If any of the above conditions is met, the air purification module is controlled to operate;

[0058] Among them, the dynamic concentration critical values of formaldehyde and PM2.5 are dynamically adjusted according to the current environmental parameters, indoor ventilation status, and the user behavior period at the current moment.

[0059] Specifically, the formaldehyde dynamic concentration critical value is dynamically adjusted according to the current environmental parameters, indoor ventilation status, and the current user behavior time period, including the following steps:

[0060] SA1 obtains the actual indoor temperature T and actual relative humidity H at the current moment, and calculates the first formaldehyde dynamic concentration critical value C by the following formula 1,HCHO :

[0061] C 1,HCHO =C 0,HCHO×(1-α1×(T-T0)×(H-H0))

[0062] Among them, C 0,HCHO is the initial formaldehyde dynamic concentration critical value, α1 is the first formaldehyde concentration adjustment coefficient, which is used to control the influence of temperature and humidity on the critical value; T0 and H0 are the reference temperature and reference humidity;

[0063] The initial formaldehyde dynamic concentration critical value C 0,HCHO The value is 0.08mg / m 3 ; The reference temperature T0 is 25°C; the reference humidity H0 is 60%; the first formaldehyde concentration adjustment coefficient α1 is 0.01.

[0064] In specific implementation, in order to obtain the actual indoor temperature T and the actual relative humidity H, a temperature and humidity sensor is set indoors.

[0065] SA2 obtains the indoor ventilation status at the current moment and calculates the first formaldehyde dynamic concentration critical value C by the following formula: 1,HCHO Correction is performed to obtain the second formaldehyde dynamic concentration critical value C 2,HCHO :

[0066] C 2,HCHO =C 1,HCHO ×β1

[0067] Wherein, β1 is the second formaldehyde concentration adjustment coefficient, and the value of the second formaldehyde concentration adjustment coefficient β1 is determined by the current indoor ventilation state, specifically:

[0068] If the ventilation state is good, the value range of β1 is (1,2], and the corrected first formaldehyde dynamic concentration critical value C 1,HCHO Equal to the second formaldehyde dynamic concentration critical value C 2,HCHO ;

[0069] If the ventilation state is normal, the value of β1 is 1. At this time, the first formaldehyde dynamic concentration critical value C 1,HCHO Equal to the second formaldehyde dynamic concentration critical value C 2,HCHO ;

[0070] If the ventilation state is poor, the value range of β1 is (0,1), and the corrected first formaldehyde dynamic concentration critical value C 1,HCHO Equal to the second formaldehyde dynamic concentration critical value C 2,HCHO .

[0071] In specific implementation, in order to obtain the ventilation status at the current moment, a wind speed sensor is set at the indoor ventilation equipment to detect the wind speed v, and the ventilation status is determined according to the range of the wind speed v:

[0072] When 1.0m / s≤v, the ventilation state is good;

[0073] When 0.3m / s≤v<1.0m / s, the ventilation state is normal;

[0074] When v is less than 0.3m / s, the ventilation condition is poor.

[0075] SA3 obtains the current time S, determines the user behavior period at the current time S, and calculates the second formaldehyde dynamic concentration critical value C by the following formula: 2,HCHO Correction is performed to obtain the critical value of formaldehyde dynamic concentration C 3,HCHO :

[0076] C 3,HCHO =C 2,HCHO ×γ1

[0077] Wherein, γ1 is the third formaldehyde concentration adjustment coefficient, and the value of the third formaldehyde concentration adjustment coefficient γ1 is determined by the user behavior period at the current moment S, specifically:

[0078] If the current time S is in the user's home period S_in, the value range of γ1 is (0,1];

[0079] If the current time S is in the user's outing period S_out, the value range of γ1 is (1,2];

[0080] At this time, the second corrected formaldehyde dynamic concentration critical value C 2,HCHO Equal to the critical value of formaldehyde dynamic concentration C 3,HCHO .

[0081] During specific implementation, the user's home time period S_in and the user's out time period S_out may be set in advance at the user end.

[0082] Specifically, the PM2.5 dynamic concentration critical value is dynamically adjusted according to the current environmental parameters, indoor ventilation status, and the user behavior time period at the current moment, including the following steps:

[0083] SC1 obtains the outdoor air quality index A at the current moment and calculates the first PM2.5 dynamic concentration critical value C by the following formula: 1,PM2.5 :

[0084] C 1,PM2.5 =C 0,PM2.5 ×(1+α2×(A-A0))

[0085] Among them, C 0,PM2.5 is the initial PM2.5 dynamic concentration critical value, α2 is the first PM2.5 concentration adjustment coefficient, which is used to control the impact of AQI on the critical value; A0 is the reference air quality index.

[0086] In specific implementation, the initial PM2.5 dynamic concentration critical value C 0,PM2.5 The value is 75 μg / m 3 ; The reference air quality index A0 is 50, and the first PM2.5 concentration adjustment coefficient α2 is 0.02.

[0087] During specific implementation, the outdoor air quality index A can be obtained from the real-time AQI interface of the Ministry of Ecology and Environment or other third-party platforms.

[0088] SC2 obtains the indoor ventilation status at the current moment and calculates the first PM2.5 dynamic concentration critical value C by the following formula: 1,PM2.5 Correction is performed to obtain the second PM2.5 dynamic concentration critical value C 2,PM2.5 :

[0089] C 2,PM2.5 =C 1,PM2.5 ×β2

[0090] Wherein, β2 is the second PM2.5 concentration adjustment coefficient, and the value of the second PM2.5 concentration adjustment coefficient β2 is determined by the indoor ventilation state at the current moment, specifically:

[0091] If the ventilation state is good, the value range of β2 is (1,2], and the corrected first PM2.5 dynamic concentration critical value C 1,PM2.5 Equal to the second PM2.5 dynamic concentration critical value C 2,PM2.5 ;

[0092] If the ventilation state is normal, the value of β2 is 1. At this time, the first PM2.5 dynamic concentration critical value C 1,PM2.5 Equal to the second PM2.5 dynamic concentration critical value C 2,PM2.5 ;

[0093] If the ventilation state is poor, the value range of β2 is (0,1), and the corrected first PM2.5 dynamic concentration critical value C 1,PM2.5 Equal to the second PM2.5 dynamic concentration critical value C 2,PM2.5 .

[0094] In specific implementation, in order to obtain the ventilation status at the current moment, a wind speed sensor is set at the indoor ventilation equipment to detect the wind speed v, and the ventilation status is determined according to the range of the wind speed v:

[0095] When 1.0m / s≤v, the ventilation state is good;

[0096] When 0.3m / s≤v<1.0m / s, the ventilation state is normal;

[0097] When v is less than 0.3m / s, the ventilation condition is poor.

[0098] SC3 obtains the current time S, determines the user behavior period at the current time, and calculates the second PM2.5 dynamic concentration critical value C by the following formula: 2,PM2.5 Correction is performed to obtain the critical value C of PM2.5 dynamic concentration 3,PM2.5 :

[0099] C 3,PM2.5 =C 2,PM2.5 ×γ2

[0100] Wherein, γ2 is the third PM2.5 concentration adjustment coefficient, and the value of the third PM2.5 concentration adjustment coefficient γ2 is determined by the user behavior period at the current moment, specifically:

[0101] If the current time S is in the user's home period S_in, the value range of γ2 is (0,1];

[0102] If the current time S is in the user's outing period S_out, the value range of γ2 is (1,2];

[0103] At this time, the corrected second PM2.5 dynamic concentration critical value C 2,PM2.5 Equal to the PM2.5 dynamic concentration critical value C 3,PM2.5 .

[0104] During specific implementation, the user's home time period S_in and the user's out time period S_out may be set in advance at the user end.

[0105] Compared with existing technologies, the critical values of PM2.5 and formaldehyde concentrations are corrected by combining the outdoor environment, ventilation status and user habits, thereby achieving precise and dynamic air quality control.

[0106] The terms used in the embodiments of the present application are only for the purpose of describing specific embodiments and are not intended to limit the embodiments of the present application. The singular forms of "a", "said" and "the" used in the embodiments of the present application and the claims are also intended to include plural forms, unless the context clearly indicates other meanings. It should also be understood that, unless otherwise specified, "multiple" refers to two or more; the terms "first", "second", "third", etc. are only used to distinguish, and are not used to describe a specific order or sequence, nor can they be understood to indicate or imply relative importance. The term "and / or" used herein refers to and includes any or all possible combinations of one or more associated listed items. When the above description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. In the description of the present application, for those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances.

[0107] The above-described embodiments merely illustrate several implementations of the present invention. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art would be able to make numerous variations and improvements without departing from the spirit of the present invention, and all such variations and improvements fall within the scope of protection of the present invention.

Claims

1. An air purification control method, characterized in that: The following steps are involved: Get the current indoor formaldehyde concentration and PM2.5 concentration; Determine whether the current formaldehyde concentration is greater than or equal to the formaldehyde dynamic concentration critical value, or whether the current PM2.5 concentration is greater than or equal to the PM2.5 dynamic concentration critical value: If any of the above conditions is met, the air purification module is controlled to operate; Among them, the dynamic concentration critical values of formaldehyde and PM2.5 are dynamically adjusted according to the current environmental parameters, indoor ventilation status, and the user behavior period at the current moment.

2. The air purification control method according to claim 1, characterized in that: Obtaining a critical value of formaldehyde dynamic concentration based on current environmental parameters, indoor ventilation status, and the current user behavior period includes the following steps: SA1 obtains the actual indoor temperature T and actual relative humidity H at the current moment, and calculates the first formaldehyde dynamic concentration critical value C by the following formula 1,HCHO : C 1,HCHO =C 0,HCHO ×(1-α1×(T-T0)×(H-H0)) Among them, C 0,HCHO is the initial formaldehyde dynamic concentration critical value, α1 is the first formaldehyde concentration adjustment coefficient, which is used to control the influence of temperature and humidity on the critical value; T0 and H0 are the reference temperature and reference humidity; SA2 obtains the indoor ventilation status at the current moment and calculates the first formaldehyde dynamic concentration critical value C by the following formula: 1,HCHO Correction is performed to obtain the second formaldehyde dynamic concentration critical value C 2,HCHO : C 2,HCHO =C 1,HCHO ×β1 Wherein, β1 is a second formaldehyde concentration adjustment coefficient, and the value of the second formaldehyde concentration adjustment coefficient β1 is determined by the indoor ventilation state at the current moment; SA3 obtains the current time S, determines the user behavior period at the current time S, and calculates the second formaldehyde dynamic concentration critical value C by the following formula: 2,HCHO Correction is performed to obtain the critical value of formaldehyde dynamic concentration C 3,HCHO : C 3,HCHO =C 2,HCHO ×γ1 Wherein, γ1 is a third formaldehyde concentration adjustment coefficient, and the value of the third formaldehyde concentration adjustment coefficient γ1 is determined by the user behavior period at the current moment S.

3. The air purification control method according to claim 2, characterized in that: The value of the second formaldehyde concentration adjustment coefficient β1 is determined by the current indoor ventilation state, including: If the ventilation state is good, the value range of β1 is (1,2], and the corrected first formaldehyde dynamic concentration critical value C 1,HCHO Equal to the second formaldehyde dynamic concentration critical value C 2,HCHO ; If the ventilation state is normal, the value of β1 is 1. At this time, the first formaldehyde dynamic concentration critical value C 1,HCHO Equal to the second formaldehyde dynamic concentration critical value C 2,HCHO ; If the ventilation state is poor, the value range of β1 is (0,1), and the corrected first formaldehyde dynamic concentration critical value C 1,HCHO Equal to the second formaldehyde dynamic concentration critical value C 2,HCHO .

4. The air purification control method according to claim 3, characterized in that: The value of the third formaldehyde concentration adjustment coefficient γ1 is determined by the user behavior period at the current moment S, including: If the current time S is in the user's home period S_in, the value range of γ1 is (0,1]; If the current time S is in the user's outing period S_out, the value range of γ1 is (1,2]; At this time, the second corrected formaldehyde dynamic concentration critical value C 2,HCHO Equal to the critical value of formaldehyde dynamic concentration C 3,HCHO .

5. The air purification control method according to claim 1, characterized in that: The PM2.5 dynamic concentration critical value is obtained based on the current environmental parameters, indoor ventilation status, and the current user behavior period, including the following steps: SC1 obtains the outdoor air quality index A at the current moment and calculates the first PM2.5 dynamic concentration critical value C by the following formula: 1,PM2.5 : C 1,PM2.5 =C 0,PM2.5 ×(1+α2×(A-A0)) Among them, C 0,PM2.5 is the initial PM2.5 dynamic concentration critical value, α2 is the first PM2.5 concentration adjustment coefficient, which is used to control the impact of outdoor air quality on the critical value; A0 is the reference air quality index. SC2 obtains the indoor ventilation status at the current moment and calculates the first PM2.5 dynamic concentration critical value C by the following formula: 1,PM2.5 Correction is performed to obtain the second PM2.5 dynamic concentration critical value C 2,PM2.5 : C 2,PM2.5 =C 1,PM2.5 ×β2 Wherein, β2 is the second PM2.5 concentration adjustment coefficient, and the value of the second PM2.5 concentration adjustment coefficient β2 is determined by the indoor ventilation state at the current moment; SC3 obtains the current time S, determines the user behavior period at the current time, and calculates the second PM2.5 dynamic concentration critical value C by the following formula: 2,PM2.5 Correction is performed to obtain the critical value C of PM2.5 dynamic concentration 3,PM2.5 : C 3,PM2.5 =C 2,PM2.5 ×γ2 Among them, γ2 is the third PM2.5 concentration adjustment coefficient, and the value of the third PM2.5 concentration adjustment coefficient γ2 is determined by the user behavior time period at the current moment.

6. The air purification control method according to claim 5, characterized in that: The value of the second PM2.5 concentration adjustment coefficient β2 is determined by the current indoor ventilation state, including: If the ventilation state is good, the value range of β2 is (1,2], and the corrected first PM2.5 dynamic concentration critical value C 1,PM2.5 Equal to the second PM2.5 dynamic concentration critical value C 2,PM2.5 ; If the ventilation state is normal, the value of β2 is 1. At this time, the first PM2.5 dynamic concentration critical value C 1,PM2.5 Equal to the second PM2.5 dynamic concentration critical value C 2,PM2.5 ; If the ventilation state is poor, the value range of β2 is (0,1), and the corrected first PM2.5 dynamic concentration critical value C 1,PM2.5 Equal to the second PM2.5 dynamic concentration critical value C 2,PM2.5 .

7. The air purification control method according to claim 6, characterized in that: The value of the third PM2.5 concentration adjustment coefficient γ2 is determined by the user behavior period at the current moment, including: If the current time S is in the user's home period S_in, the value range of γ2 is (0,1]; If the current time S is in the user's outing period S_out, the value range of γ2 is (1,2]; At this time, the corrected second PM2.5 dynamic concentration critical value C 2,PM2.5 Equal to the PM2.5 dynamic concentration critical value C 3,PM2.5 .

8. The air purification control method according to claim 4, characterized in that: The initial formaldehyde dynamic concentration critical value C 0,HCHO The value is 0.08mg / m 3 ; The reference temperature T0 is 25°C; the reference humidity H0 is 60%; the first formaldehyde concentration adjustment coefficient α1 is 0.

01.

9. The air purification control method according to claim 7, characterized in that: The initial PM2.5 dynamic concentration critical value C 0,PM2.5 The value is 75 μg / m 3 ; The reference air quality index A0 is 50, and the first PM2.5 concentration adjustment coefficient α2 is 0.

02.

10. An air purifier, characterized in that: The air purifier uses the control method according to claims 1 to 9 to control the operation of the air purification module.

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