The present invention discloses an automatic source-seeking indoor pollution purifying and removing device and method for airborne pollutants. The device comprises pollutant concentration sensors, a control unit, a position sensor, a power plant, a moving mechanism, a telescopic device, a pollutant collection hood, and a filtering and purifying device. The control unit can identify the actual release positions and hourly release rates of relevant pollutants according to the concentration data monitored by the pollutant concentration sensors, and can control the pollutant collection hood in the device to move to a designated position in a space, so as to realize the collection and removal of pollutants at the release position of the pollutants.

This publication discloses an electrostatic filter construction, to be positioned in air ducts or ventilation channels, which electrostatic filter construction includes a charging unit, which charges the particles to be filtered into a first electric potential and arranged in the filter construction in the path of the air flow before filter elements, electrically conducting electrodes connected to a second electric potential different to the potential of the charged particles and set substantially parallel to the direction of the airflow, and bag shaped filter elements positioned after the charging unit in the path of the air flow. According to the invention each bag shaped filter element has at least one designated UV-light source and an element of photo catalytic material like TiO.sub.2.

An improved technology for inactivation of viruses, for example the SARS-CoV-2 virus that is causing the Covid-19 pandemic, is described. The technology can include a device that includes a substrate coated in a polymer that is infused with a pathogen inactivating material. In various embodiments, at a given time, a portion of the pathogen inactivating material is exposed to the environment, and the device is configured to periodically or intermittently expose additional pathogen inactivating material to the environment. For example, the polymer can be ablative or sacrificial.

An apparatus is for cleaning flatulence of obnoxious odor, infectious virus and/or bacteria, and other contaminants. It can be mounted underneath a seat or bed provided with a flatulence collecting means. Flatulence is drawn through a series of chambers with charcoal provided in a first chamber for removing the obnoxious odor, copper wool provided in a second chamber having plurality of maze-like chambers for capturing and exterminating virus and/or bacteria; and a final chamber having sanitizing mist for eliminating contaminants.

A self-disinfecting antiviral filter material 10 includes an air-permeable carrier 11 and a composite coating 12 including at least one color pigment 13 with antiviral activity and an inorganic matrix material 14 bonded to the carrier 11. The at least one color pigment 13 preferably includes at least one compound from the group of phthalocyanines. The matrix material is preferably selected from the group including metal oxides. An air filter device including the self-disinfecting antiviral filter material, a method of manufacturing the filter material, and a method of inactivating viruses are also described.

A method for intelligently preventing and handling indoor air pollution is adapted to be implemented in an indoor space and includes providing a cloud processing device to receive and intelligently compare an outdoor gas detection data, an indoor gas detection data, and device gas detection data with each other. Then, the cloud processing device remotely transmits a control signal to the communication relay station and further to an indoor gas exchange system, so that the indoor gas exchange system is capable of intelligently enabling the gas processing device and controlling the operation time of the gas processing device for exchanging a polluted gas in the indoor space with the outdoor gas. Moreover, the gas exchanger can perform purification for the polluted gas at the location of the gas exchanger, thereby allowing the polluted gas in the indoor space to be exchanged into a clean, safe, and breathable gas.

A multi-function air purifying and sterilizing system for filtering and/or sterilizing air comprises: (a) a casing having an air inlet at one end of the casing and an air outlet at the other end of the casing, (b) electrostatic means for attracting particulate matter including biological contaminants, and thus, for removing the particulate matter and the biological contaminants from an air stream passing therethrough, the electrostatic means comprising at least one spiked surface, the at least one spiked surface inducing corona discharge and/or cold plasma when high voltage is applied, the corona discharge and/or the cold plasma producing ozone molecules, (c) at least one energy source for producing rays, the at least one energy source is inter-displaced within the electrostatic means to have the produced rays in close proximity to the electrostatic means for maximizing the at least one energy source efficiency in demolishing the particulate matter and the biological contaminants depositing on the electrostatic means, and/or converting the ozone molecules to hydroxyl radicals, the hydroxyl radicals disinfecting and inhibiting the biological contaminants and/or odors, and/or gases in the air stream, the hydroxyl radicals is spreadable within a confined space, thus, disinfecting biological contaminants and/or odors, and/or gases within a confined space.

An air purification system for a passenger cabin of a transport vessel. The air purification system comprises an elongated air compartment having a panel, with a plurality of openings along the panel. Air filters reside within the various openings to receive air from inside the cabin. The system also includes a plurality of air tubes. Air moves through the air tubes, aided by a source of compressed air to motive flow valves. The motive flow valves create suction to draw air into the air compartment from the passenger cabin. The system also includes at least one UV-C light source. The UV-C light resides within the air compartment, and disinfects the air moving through the air compartment. A plurality of air outlets are also placed along the lower panel, with each outlet configured to release air at selected points to provide a continuous distribution of filtered and disinfected air into the passenger cabin.

A method of preventing and handling indoor air pollution is disclosed and includes: providing a portable gas detection device to monitor the air quality in the indoor environment; disposing 1˜75 gas exchangers within the indoor space to inhale outdoor gas, purify and filter the inhaled gas, and introduce the inhaled gas into the indoor space; and remotely controlling the gas exchangers to enable filtration, purification and gas exchange procedure by the portable gas detection device when the portable gas detection device detects an air pollutant in the indoor space, to reduce the air pollutant in the indoor space under a safe detection value within 1 minute, and form a breathable gas, wherein the air pollutant in the gas in the indoor space is exchanged and exported out to outdoor environment, the gas exchangers have an exported airflow rate of 200˜1600 CADR, and the indoor space has a volume of 16.5˜247.5 m.sup.3.

A light fixture includes a housing forming a cavity to permit airflow therethrough. A filter is disposed within the airflow of the cavity. An ultraviolet light emitting diode is disposed within the cavity and is directed to concurrently treat the airflow and the filter to destroy biomaterial therein.