An in-car air pollution prevention system is disclosed and includes plural gas detection modules and a gas conditioning device. The in-car gas detection modules and the out-car gas detection modules are provided for detecting the external gas and the air pollution source and transmitting the gas detection data respectively. A plurality of filtering and purification components are disposed within the gas conditioning device for filtering the external gas and the air pollution source. After the control drive unit compares the gas detection data, the gas conditioning device intelligently select and control the introduction or not introduction of the external gas. The plurality of in-car gas detection modules control the enablement of the gas guider of the gas conditioning device under a monitoring mechanism state. Whereby the gas pollution source in the interior space of the car is filtered through the filtering and purification component, and the gas pollution source is filtered and/or exchanged to generate clean air.

An in-car air pollution prevention system is disclosed and includes plural gas detection modules and a gas conditioning device. The in-car gas detection modules and the out-car gas detection modules are provided for detecting the external gas and the air pollution source and transmitting the gas detection data respectively. A plurality of filtering and purification components are disposed within the gas conditioning device for filtering the external gas and the air pollution source. After the control drive unit compares the gas detection data, the gas conditioning device intelligently select and control the introduction or not introduction of the external gas. The plurality of in-car gas detection modules control the enablement of the gas guider of the gas conditioning device under a monitoring mechanism state. Whereby the gas pollution source in the interior space of the car is filtered through the filtering and purification component, and the gas pollution source is filtered and/or exchanged to generate clean air.

Apparatus for electromagnetic treatment of at least one pathogen in air or other gas, comprises a waveguide structure including a treatment region within the waveguide structure, wherein the treatment region is configured to receive the air or other gas that contains the at least one pathogen, means for providing electromagnetic radiation to the treatment region, and at least one structure permeable to the air or other gas and that is configured to at least partially confine the electromagnetic radiation, wherein the at least one permeable structure forms at least one boundary of the treatment region.

This application provides an air purifier, which includes a casing, a fan, a filter, and a photocatalytic module. The filter is in a cylindrical shape. The photocatalytic module includes a photocatalytic cylinder having a cylindrical shape and a light source for irradiating the photocatalytic cylinder. The photocatalytic cylinder is disposed in the filter, an upper end of the photocatalytic cylinder is supported in the casing, and the light source is installed in the casing. In the present application, the air purifier is provided with a photocatalytic module which can decompose harmful gases and enables a sterilization, thus the purification performance can be improved. The filter and the photocatalytic cylinder both have a cylindrical shape, and the photocatalytic cylinder is disposed in the filter.

Described herein is an ultrasound-based virus shield. The ultrasound-based virus shield may include an ultrasound sonar emitter configured to emit a first sonar signal including a header with key data, and an ultrasound sonar receiver configured to receive a second sonar signal. The ultrasound-based virus shield may include a processor configured to: calculate a distance between the ultrasound-based virus shield and a subject in response to determining that the second sonar signal includes the key data associated with the first sonar signal, and activate an ultrasound sterilizing emitter in response to determining that the distance calculated is less than a threshold distance. An ultrasound sterilizing emitter of the ultrasound-based virus shield may be configured to emit a sterilizing signal.

Systems and methods for detecting, capturing and/or disinfecting viruses. A water trap system includes a water-filled container through which air is introduced into a water-filled container. Charged viruses, bacteria and other contaminants become trapped in the water-filled container as they are entrapped by oppositely charged atoms (e.g., oxygen). Another device incorporates an electric field created by a pair of electrodes with an outer surface heated to a threshold temperature significant enough to disinfect viruses that come into contact therewith. Another device is a portable inhaler for detecting the polarity of airborne viruses and counting the positive and negative electrical charges of airborne viruses with tolerances of a few charged particles per cubic centimeter by sampling several hundred cubic centimeters of air per second. Consequently, the portable inhaler is capable of quickly and efficiently detecting whether a person has contracted a virus (e.g., COVID-19 virus).

An air management system for a common indoor room or space that comprises a plurality of air outflow apertures or vents, a plurality of air curtains having at least a portion of the air curtains separated from one another, a plurality of separated air suction intakes, and an air sterilization and/or air cleaning mechanism.

An air management system for a common indoor room or space that comprises a plurality of air outflow apertures or vents, a plurality of air curtains having at least a portion of the air curtains separated from one another, a plurality of separated air suction intakes, and an air sterilization and/or air cleaning mechanism.

Provided is a stretchable film having excellent stretchability, excellent air permeability, and an excellent deodorizing property. Also provided is an article including such stretchable film. A stretchable film of the present invention is a film having stretchability, and includes a deodorant. The stretchable film of the present invention is a film having stretchability, and has a deodorization efficiency for each of ammonia and hydrogen sulfide 3 hours after the start of a deodorization test, the deodorization efficiency being measured by a detector tube method, of 10% or more.

There are provided methods for treating a gas having an undesirable odor. The methods comprise contacting the gas with an acidic aqueous oxidizing composition having a pH of about 2.0 to about 3.0 and comprising at least one cation of a metal; a sequestering agent; and H.sub.2O.sub.2 and submitting the gas and the composition to UV radiation when the gas and the composition are contacting each other, wherein the treatment permits to reduce by at least 60% intensity of the undesirable odor.