An emergency escape kit is disclosed. The emergency escape kit includes: an emergency escape punch having an obstacle contact portion configured to be in close contact with an obstacle such as a glass window, and configured to shatter the obstacle by pressurizing a side thereof opposite to the obstacle contact portion located between the obstacle and the side of the emergency escape punch; and a gas mask configured to be couplable to or separable from the emergency escape punch, wherein when the gas mask is coupled to the emergency escape punch, the gas mask shields a portion of the emergency escape punch from an outside of the emergency escape punch, and when gas mask is separated from the emergency escape punch and is brought into close contact with respiratory organ of a user, the gas mask prevents external poisonous gas from flowing into the respiratory organ of the user.

Disclosed is a system for integrally treating a composite waste gas including nitrogen oxides (NO.sub.x and N.sub.2O), chlorofluorocarbons (CFCs), hydrochlorofluorocarbons (HCFCs), hydrofluorocarbons (HFCs), and perfluorinated compounds (PFCs). The system includes a first wet processor configured to wash and adsorb dust including gases, SO.sub.x, and ash dissolved in water, a decomposing reactor configured to receive waste gas processed in the first wet processor and process nitrogen oxides (NO.sub.x and N.sub.2O), fluorocarbons (CFCs), hydrochlorofluorocarbons (HCFCs), hydrofluorocarbons (HFCs), and perfluorinated compounds (PFCs) in the waste gas, and a second wet processor configured to receive the waste gas processed in the decomposing reactor and wash and adsorb the received waste gas. The system can efficiently treat a large amount of composite waste gas.

A plant air purifier with filter material within a filter bed container, wherein the filter material can both allow air to pass through it during the unit's air purification phase and for water to submerge the filter material during its remoisturization phase The unit itself passes through various phases and sub phases: an air purification phase; followed by a remoisturization phase, which includes an immersion of the filter material sub phase, and a draining away of the water during its drainage sub phase. And in some cases, a soaking sub phase of the filter material for some time. Three different embodiments of the unit are provided: a unit with a separate soaking; chamber outside the unit; one with an outer pot surrounding the filter container; and one with a flapper below the filter bed container.

A scrubber for treating exhaust gas generated by combustion of biomass comprises a plurality of chambers each configured to apply a scrubbing medium to the exhaust gas for removing solid particles from the exhaust gas. A first chamber includes at least one nozzle configured to dispense scrubbing liquid in a sheet oriented transversely to a path of flow of exhaust through the first chamber. A second chamber defines a reservoir for containing a bath of scrubbing liquid and further includes a baffle configured to deflect the exhaust gas into the bath. A third chamber is arranged to support a sheet of solid filter medium spanning across the chamber.

An air purifier is provided, including a box body and a filter screen inside the box body, an air suction device, a water mist generator, the water mist generator being disposed at one side of the filter screen, the air suction device being configured to inhale outdoor air into an interior of the box body, and the water mist generator being configured to form an ionized water layer.

A flexible sheet collects overspray and keeps spray booth environments clean, thereby reducing or eliminating dust and foreign matter from landing on wet painted surfaces which might otherwise result in a paint surface defect. The flexible sheet comprises a woven or non-woven mesh or net material having apertures or perforations that penetrate through the sheet. The sheet is impregnated with a tacky substance, such that paint overspray and dirt particles cling to the impregnated sheet. In the preferred embodiment, the tacky substance is a wax-based substance, more preferably a natural or synthetic beeswax-based substance. The material may be made from polymeric filaments of nylon or other natural or synthetic fibers, threads or strands. The flexible sheet of material may be provided in roll form for use. Method of making a tacky netting are also disclosed. The product is particularly useful in vehicle spray-booth applications.

An air filter oil composition is provided for enhancing airflow and filtration of air passing through an air filter. The composition includes a first portion comprising paraffinic oil, a second portion comprising polyalphaolefin (PAO), and a third portion comprising black dye. Applying the air filter oil composition to a cotton air filter material causes tackiness throughout the air filter material, thereby enhancing airflow and filtration of air passing through the air filter. The composition generally is substantially non-reactive, has an excellent oxidation stability, possesses good thermal stability, and retains a suitable viscosity at normal operating temperatures of an automobile engine. In an embodiment, the composition comprises 96.74% paraffinic oil by volume, 3.20% PAO by volume, and 0.06% black dye by volume. A viscosity of the composition at 100 degrees-C. ranges between substantially 7.2 and 7.6 centistokes (cSTs).

The wet non-woven fabric for a filter of the present invention comprises vinylon, polyester, and polyvinyl alcohol, the wet non-woven fabric comprises 10 to 20% by weight of the polyvinyl alcohol, and a surface, of the wet non-woven fabric, that is located on an upstream side of air flow has a surface roughness (SMD) of not larger than 2.7 m.

An apparatus and a method are provided for a heating, ventilation, and air conditioning (HVAC) home air filter to remove airborne molecular contaminants and volatile organic compounds (VOCs) from air within residential spaces. The HVAC home air filter includes a supportive frame having a shape and size suitable to orient the HVAC home air filter within a residential HVAC system. A filter medium is retained within the supportive frame to remove the airborne molecular contaminants and VOCs from air flowing through the residential HVAC system. The filter medium includes a combination of media layers configured to exhibit a relatively high filtration efficiency and a low air pressure drop across the filter medium. The supportive frame includes a plurality of elongate sections and corner sections disposed along perimeter edges of the filter medium to support the filter medium within the residential HVAC system so as direct air through the filter medium.

A filtration device, in particular a disposable filtration device, has a flow path in which a filter element and an integrated flow reducer are arranged one behind the other. The flow reducer is adapted to be brought to a first operating position, which permits a defined first volume flow rate, and at least to a second operating position, which permits a defined second volume flow rate which is smaller than the first volume flow rate.