The present invention relates to an electric grill comprising a purification and circulation system for removing oil mist and smoke and, more particularly, to an electric grill comprising a purification and circulation system for removing oil mist and smoke, wherein: a suction hole and a discharge hole are installed around a grill plate; air containing oil mist, smoke, heat, and smell is suctioned through the suction hole, the suctioned air containing, oil mist, smoke, heat, and smell is introduced into the lower portion of the grill by a suction fan, and comes into contact with water on the upper side of an oil pan containing the water, so as to remove the oil mist, smoke, heat, and smell contained therein, and then the purified air is circulated through the discharge hole installed around the grill plate; a filter is disposed so as to completely remove the oil mist, smoke, heat, and smell; and a Coanda air guide is installed so as to facilitate the contact between the oil mist, smoke, heat, and smell and the water, whereby the oil mist, smoke, heat, and smell can be completely removed.

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 comprises 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 comprises 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 comprises 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 filter matrix of nickel, nickel alloy, nickel-plated, nickel-oxide, nickel compound, or a combination thereof, surfaces, surface coatings, and impregnated surfaces that inhibit the growth of microbes that come in contact or in proximity to the surface of the filter. The nickel-based filter matrix reduces and/or eliminates microbes from air that flows over or through the filter. A fan or pressure differential can be used to blow or draw the fluid or air across the treated surfaces.

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.

The Kachina Aholi is a device invented out of three main components. The three components are: a drone or other aerial load lifting apparatus, a air filter (varying in the passage intensity of molecular material, graded filters) and a Super or Ultra hydrophobic spray (e.g. WATERBEADER™). These three components combined make a device that is flown up to clouds that are dense with water molecules and “bead” those molecules up along the air filter and cause premature precipitation. This method of premature precipitation can be used to irrigate farms, prevent flash floods, prevent landslides, wildfire prevention or reduction, increase accessibility in low water/dry areas, and climate control.

Provided is a water- and oil-repellent agent composition that is capable of producing an article having a high water pressure resistance and a low water absorption rate. The water- and oil-repellent agent composition contains a fluorine-containing polymer having a unit based on a monomer (a), a unit based on a monomer (b1), a unit based on a monomer (b2), a unit based on a monomer (b3), and a unit based on a monomer (c), wherein relative to all the units that constitute the fluorine-containing polymer, the proportion of the unit based on the monomer (a) is from 70 to 80% by mass, the proportion of the combination of the unit based on the monomer (b1), the unit based on the monomer (b2) and the unit based on the monomer (b3) is from 12 to 28% by mass, and the proportion of the unit based on the monomer (c) is from 2 to 8% by mass. Monomer (a): a compound represented by (Z-Q).sub.nX. Monomer (b1): a monomer not having a polyfluoroalkyl group (R.sup.f group), but having an alkyl group of 22 carbon atoms. Monomer (b2): a monomer not having an R.sup.f group, but having an alkyl group of 20 carbon atoms. Monomer (b3): a monomer not having an R.sup.f group, but having an alkyl group of 18 carbon atoms. Monomer (c): a halogenated olefin.

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

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

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.