4713 results about "Air cleaning" patented technology

The invention provides a thick coating material capable of purifying air and a preparation method thereof, belonging to the building material field. An internal wall coating decorative material comprises 5 to 40 weight portions of a porous absorbing material and 10 to 40 weight portions of a composite photocatalysis material in every 100 weight portion of the paint. In the preparation method, the coating material, is formed by compounding a mineral material with the nanometer photocatalysis material to obtain a high activity purifying material, matching the high activity purifying material with other nanometer materials and the porous absorbing material, and then adding an inorganic filling material, a skeletal material and other addition agents, can remove harmful gases such as formaldehyde and toluol in air and has the environmental protection function. The paint has good effect for removing formaldehyde, is effective continuously, has certain thickness when the coating layer is used, has simple construction, and beautiful and elegant patterns, is well-bedded, is strong in the three-dimension effect and has good decorative effect.

A powered air purifying respirator system for use with at least one filter system includes: a housing including at least one inlet port and at least one outlet port; a motorized air flow system to draw air into the housing via the at least one inlet port; a control system in communicative connection with the motorized air flow system; and a filter system sensor in communicative connection with the control system. The filter system sensor provides information to the control system relating to the type of the at least one filter system upon fluid connection thereof with the housing. The control system can control the motorized air flow system at least in part on the basis of the type of filter system sensed by the filter system sensor. Another powered air purifying respirator system for use with at least one filter system includes: a housing including at least one inlet port and at least one outlet port; a motorized air flow system to draw air into the housing via the at least one inlet port; a control system in communicative connection with the motorized air flow system; and a pressure sensor in communicative connection with the control system to provide information to the control system relating to ambient pressure. The control system can, for example, control the motorized air flow system at least in part on the basis of the information relating to ambient pressure.

The invention discloses an active alumina/active carbon composite material and a preparation method thereof. The composite material comprises the following ingredients: 70-90 weight portions of sludge, 10-30 weight portions of active carbon, and 15-35 weight portions of binder, and is prepared by uniformly mixing, pelleting, aging, molding, drying in the air, sintering, rinsing and drying. Using sludge as raw material has an important meaning to environmental protection and recycling of waste. The invention has the advantages of simple preparation method, easy obtainment of raw material, and low cost, and can be widely applied in the fields of industry, agriculture, environmental protection, air cleaning, water treatment and the like.

An improved filter element for use in an electrostatic precipitation air cleaning device, the filter element including rod electrodes arranged through a stack of alternating fluted plastic sheets and plate electrodes. Successive plate electrodes are arranged to make contact with an alternating one or the other of the rod electrodes. The plate and rod electrodes may be composed of high impedance materials such as paper and plastic, respectively. An arrangement for removably inserting a filter element into an air cleaning device is provided. The arrangement also removably provides electrical connectivity between the filter element and the air cleaning device. The filter element can thus be readily removed and re-installed by a user.

The invention provides an air purification system and method for combining filtration, ultraviolet irradiation, and photocatalysis, in an annular geometry that maximizes the photocatalytic efficiency of the ultraviolet light in the deactivation of microbes and the photocatalysis of volatile compounds.

An air cleaning unit is provided. The air cleaning unit includes a housing having an air intake and an air outlet. Intermediate the air intake and air outlet is an air filtration medium. Also within the housing is at least one UV-C lamp. The air cleaning unit also includes an odor-reducing medium, such as a photocatalytic oxidation (“PCO”). filter. A method for filtering air using the air cleaning unit is also provided.

The present invention is a system for and method of providing an autonomously mobile air purifier and surface cleaner in combination with a source of air fragrance in a single device for home or office use. The autonomously mobile air and surface cleaner and fragrancing system includes an air purifier, a fragrancer, a floor cleaner, an input means, a power system, operational and auxiliary sensors, robotics that drive and steer the device, and a central controller operatively connected to each of the aforementioned items to control the operation of the device. The present invention also provides a method for the operation of the device using the air purifier, fragrancer, floor cleaner and robotics to clean a room, and for modifying the operation of the device in response to signals sent from the sensors or from the input means.

A system for regulating the airflow to a closed environment using feedback control for the position of a control valve and blower speed. The system provides a control apparatus that regulates airflow to a closed environment, such as the mask of a breathing apparatus, to ensure sufficient breathing air for a wearer of such mask. In order to provide fast response to a change in condition in the breathable environment, the airflow regulator includes a valve control and a blower control.

A powered air cleaning system (1) and air cleaning method are disclosed. The system has a flow path (22) extending through the system from an air inlet (4) to a clean air outlet (5). A motor-driven fan (24) located along the flow path draws particulate debris laden air into the inlet and rotates it about an axis (A—A) to form a rotating flow that stratifies the debris laden air with the heaviest particles in the outermost orbits of the rotating flow. An ejector port (25) is provided for ejecting particulate debris laden air from the stratified rotating flow in the system to the environment. An air filter (9) located within the rotating flow and across the flow path upstream of the outlet filters air from the innermost orbits of the stratified rotating flow. The motor-driven fan is operated to maintain a positive air pressure in the system on the filter even with cyclic air flow demands so that the rotating air flow continually sweeps the outside surface of the air filter to minimize buildup of debris on the filter.

An apparatus for protecting a user in a hazardous or contaminated environment caused by chemical, fire, biological, and/or nuclear contamination includes a self-contained breathing apparatus (SCBA) for providing tank stored breathable air, a powered air purifying respirator (PAPR) for purifying ambient air and a valve system that can be used to control the source of air from either the SCBA or the PAPR. The source of breathable air can be selectively controlled via manual or automatic controls while a protective body suit can be operably coupled with the SCBA and the PAPR to protect a user within the contaminated environment.

An air cleaning apparatus includes a blowing unit and a filtering unit which are easily removed from and installed in a cabinet, allowing the air cleaning apparatus to be easily cleaned. The cabinet included in the air cleaning apparatus may be used as a table. The cabinet is provided with a top panel of a predetermined area, is opened at a bottom thereof, and is provided on at least one side wall thereof with an air outlet port. A fan casing is installed in the cabinet to be drawn out from the cabinet in a horizontal direction. A blowing fan is installed in the fan casing to move air to the air outlet port. A filter casing is installed under the fan casing to be drawn out from the cabinet in the horizontal direction, and at least one filter is installed in the filter casing.

The invention discloses a dust collecting unit for a vacuum cleaner, which comprises a first cyclone device for filtering foreign bodies in air for the first time, a second cyclone device for filtering the foreign bodies in air passing the first cyclone device 240 for the second time. The invention is characterized in that: the second cyclone device comprises a plurality of small cyclone sections of different diameters guiding air to flow in helix and a plurality of guiding tubes positioned in the small cyclone sections and used for guiding air flow upward. The invention has the advantages that: with the availability of double filtering foreign bodies in air sucked outside through the flow of cyclone, enhances the air purify capacity of the vacuum cleaner, namely the advantage of filtering foreign bodies; besides, with the plurality of small cyclone sections of the different diameters, the invention can effectively utilizing the internal space of the dust collecting unit; together with the small cyclone section with larger diameter relatively, the invention enables the air flow smoothly.

An air cleaning apparatus including a housing defining an airflow passage, a blower retained by the housing and adapted when energized to move air through the airflow passage, a filter element disposed in the airflow passage and having an inlet surface for collecting particulate matter from the airflow. A nozzle element is adapted to engage the inlet surface and is connectable to a vacuum system for allowing the vacuum system to remove the particulate matter collected on the inlet surface. An emitter bathes the inlet surface with radiation to kill germs and detoxify impurities which collect thereon. The filter element is rotated relative to the nozzle element and emitter so that substantially all of the inlet surface is vacuumed and radiated.

The invention relates to the technical field of air purifier adjusting control, in particular to an air purifier adjusting control method, device and system and an air purifier. The air purifier adjusting control method includes the steps of collecting air purifying information which includes filtering screen air pass total amount, filtering screen work duration and air quality information, and carrying out adjusting control on the air purifier according to the air purifying information, wherein adjusting control includes filtering screen replacement prompt sending and adjustment of the rotation speed of the air purifier. By means of the air purifier adjusting control method, device and system and the air purifier, according to the filtering screen air passing total amount and the filtering work duration, filtering screen replacement prompts are sent, the rotation speed of the air purifier is automatically adjusted according to the air quality information, and the requirement for actual adjustment control of the air purifier can be met.

The invention discloses an oxidation type air purifying material which has low cost and good air purifying effect and does not have secondary pollution. The oxidation type air purifying material is formed by loading an inorganic oxidant on an inorganic adsorbing material. The invention provides a method for preparing the material simultaneously, which comprises the following steps of: drying the inorganic adsorbing material till the moisture of the inorganic adsorbing material is less than 4 percent; preparing aqueous solution, which is at the concentration of between 5 and 20 percent (g/ml), of the inorganic oxidant; and immersing the aqueous solution of the inorganic oxidant in the inorganic adsorbing material for 18 to 36 hours, draining redundant liquid, and drying in a drying oven at the temperature of between 50 and 130 DEG C.

The invention relates to an omnidirectional antibacterial intelligent type air purifier for a vehicle, which comprises a shell, an air purification component, a fan power component, an energy component, an induction sensor component, a negative-ion generator and a display intelligent control component. The omnidirectional antibacterial intelligent type air purifier for the vehicle uses a nano silver modified titanium dioxide as a photocatalyst, thereby increasing photocatalysis effect and sterilization antibacterial performance. The omnidirectional antibacterial intelligent type air purifier for the vehicle uses an ultraviolet light emitting diode as a ultraviolet light source, thereby guaranteeing the photocatalyst to be capable of playing the role of degrading pollutants efficiently. The inner surface and the outer surface of an enclosure all have antibacterial performance, thereby guaranteeing bacteria not to live on the surface of an airframe of the omnidirectional antibacterial intelligent type air purifier for the vehicle, and guaranteeing personal safety. The omnidirectional antibacterial intelligent type air purifier for the vehicle can automatically induct air conditions, adjusts purification power in real time, and has intelligent control function.

An apparatus and method of roasting foodstuff such as coffee beans employ a roasting chamber for roasting the beans. An air circulation system operatively coupled with the chamber flows heated air over the beans and thereby roasts the beans, and an air cleaning arrangement is operatively coupled with the air circulation system and located downstream of the chamber for removing substantially all particulates, smoke and volatiles entrained in the used air as it flows through the container and into the air cleaning arrangement to provide substantially pollutant-free used air. The circulation system uses atmospheric air and heats, cleans and cools it within as little as ¼ second. Sensors and a electronic controller are provided to monitor various parameters in the roasting apparatus and control the roasting characteristics. The darkness and/or color of the beans during roasting is monitored to ensure proper roasting. The roasting in roasting machines at a plurality of geographically separate locations is controlled by equipping each roasting machine with a computer with memory and providing a central control station for downloading control signals to the computer to control roasting.

An air cleaner of the present invention, wherein an inlet port 4 and an outlet port 5 are formed and provided with air blower means 1 therein, an antiallergenic filter having an aromatic hydroxyl compound is installed in the air flow passage of the air blower means 1 in a main body 2, and the inlet port 4 formed in the main body 2 is provided at the lower part of the front panel, such that the suction air flow may be formed along the floor plane 3, whereby pollen and dead mites, and the like, which are present in a vicinity of a floor plane 3 can be efficiently sucked to inactivate allergic activity. A treating solution of the present invention is characterized in that it is prepared by dissolving and/or dispersing a water-soluble material and a water-insoluble material in a mixed solvent of water and a cellosolve and/or a carbitol. A method of manufacturing functional filter according to the present invention is characterized in that the treating solution above is adhesion fixed to the filter base material. A functional filter according to the present invention is characterized in that it is manufactured by the above method of manufacturing. A device according to the present invention is characterized in that the functional filter of the present invention is disposed between the inlet port and the outlet port for air or water. An air cleaning filter of the present invention is characterized in that two or more materials selected from a material having antiallergenic properties, a material having antibacterial properties, a material having antivirus properties, and a material having antifungal properties, are adhesion fixed. A device of the present invention is characterized in that the filter of the present invention is disposed between the inlet port and the outlet port for air.

A separable air purifying apparatus is provided, in which a number of purifiers whose purifying capabilities for particular pollutants are reinforced by each purifier are disposed in a space meeting each purifying characteristic in order to enable an independent operation for a custom-made purification, and are integrally combined with each other to thereby make a combination of a driving ratio of each purifier according to a degree of pollution and perform a combination operation of purification. The separable air purifying apparatus inhales external air by ventilation modules incorporated in respective cases and purifies the external air by filter members, to then discharge out the purified air. That is, the separable air purifying apparatus includes controllers controlling the ventilation modules and a main purifier and an auxiliary purifier each which are independently operated by respective power supplies. Here, an output terminal is formed in the main purifier and an input terminal is formed in the auxiliary purifier. When assembling the main and auxiliary purifiers, the input terminal of the auxiliary purifier is connected with the output terminal of the main purifier, to thus enable the controller of the main purifier to drive the ventilation module of the auxiliary purifier, and to accordingly enable a combination operation of the main and auxiliary purifiers.