Ionization systems configured with a catalyst-bearing sleeve provide improved filtration while keeping ozone levels within acceptable limits. Modular configurations provide for serviceability and replaceability. System controls monitor particulates, temperature, humidity, and other relevant factors and adjust an ionization level accordingly for optimal performance.

Ionization systems configured with a catalyst-bearing sleeve provide improved filtration while filtering ozone. Modular configurations provide for serviceability and replaceability. System controls may be used to monitor particulates, temperature, humidity, and other relevant factors and adjust an ionization level accordingly.

The present invention relates to a vehicular air cleaner. It is an object to provide a DOR system which can utilize a purifying function of an ozone purifying element containing an activated carbon for a long period of time. As shown in A1 and A2 of FIG. 5, in the activated carbon at an initial state, an ozone purification rate is almost the same as the same wind velocity even when a temperature condition is different, even though the ozone purification rate is changed when the wind velocity is changed. After the endurance test, the ozone purification rate is increased even at the same wind velocity when the temperature becomes high as shown in B1 and B2 of FIG. 5. Thus, the temperature condition difference affects the ozone purification rate more as the deterioration o the activated carbon continues.

A process to prevent fouling using a desublimating heat exchanger is disclosed. An outlet stream from the desublimating heat exchanger may be split into a plurality of parallel streams. The parallel streams may be sent through other devices for performing a unit operation, and the devices for performing a unit operation may change the temperature of at least one of the parallel streams. Parallel streams of differing temperature may emerge from the devices for performing a unit operation. The parallel streams of differing temperature may be sent to a mixing chamber. A mixed stream of uniform temperature may emerge from the mixing chamber, and the mixed stream may be recycled back to the desublimating heat exchanger. The mixing chamber may be separate from the desublimating heat exchanger, or the parallel streams of differing temperature may be mixed in the desublimating heat exchanger.

Disclosed is a plasma treatment apparatus that includes a cover attached to a body part, a plasma generation unit that generates plasma and provides the plasma to the cover, a gas supply unit that supplies a source gas for generating the plasma to the plasma generation unit, and an exhaust unit that exhausts an exhaust gas from the cover.

Disclosed in certain implementations is a catalysis composition that includes a metal catalyst and a support material impregnated with the metal catalyst.

An exhaust treatment apparatus includes a casing having an inlet port for allowing an exhaust gas to flow into the casing and an outlet port for allowing a purified exhaust gas to be discharged from the casing, an exhaust fan provided in the casing for sending the exhaust gas from the inlet port to the outlet port, and chemical filters provided in two or more stages between the exhaust fan in the casing and the outlet port.

A flow sensing ozone converter includes an inlet housing, an outlet housing, and an ozone converter core. The flow sensing ozone converter integrates flow sensing and oxygen removal components. The inlet housing is provided with an inlet housing flange. The outlet housing is provided with an outlet housing flange. The ozone converter core is at least partially received within the inlet housing. The ozone converter is provided with an ozone converter flange that abuts the inlet housing flange and the outlet housing flange.

A system for detecting and cleaning air pollution in indoor space with heating, ventilation and air conditioning includes one or more outdoor gas detection devices, several indoor gas detection devices, several filtering devices, and a central controller. The central controller receives air pollution data detected by the gas detection devices, by connecting to a cloud device, performs an intelligent computation and comparison on the air pollution data to locate an air pollution location, and the cloud device transmits a control command intelligently and selectively to the central controller. Therefore, according to the control command, the central controller controls the air conditioning modulation mechanism of one or more HVAC components and enables the filtering devices to generate a directed air convection, thereby achieving the filtration of the air pollution to allow the indoor air pollution data to be a safety detection value.

The present invention relates to a continuous negative ion based indoor air and surface disinfection system (100) incorporating a nano-composite photo-catalyst that will activate photo-catalytic oxidation at a short-wavelength ultraviolet (UV) light energy. The continuous negative ion based indoor air and surface disinfection system incorporates at least one ultraviolet (UV) light source (104); a photo-catalytic oxidation material (106) which leads to production of oxygen and hydroxyl free radicals when illuminated with ultraviolet (UV) light source in the presence of water vapors. The photo-catalytic oxidation material (106) consisting of a mesh with TiO.sub.2 nano-spindled structures (202) placed over aluminium foil (204) coated with a composite mixture of ZnOTiO.sub.2.