The present invention provides methods and systems for an air filter that includes a filtration material having at least one surface, an enclosed frame surrounding said filter material but exposing said one surface, said filter material having intermittent geometric shapes of latex on said at least one surface, said latex containing an enhanced additive.

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 filtration component with microcapsule elements for respiratory protective devices is provided. In some examples, the filtration component includes a periphery wall element and a filter media element. In some examples, the periphery wall element comprises a plurality of microcapsules. In some examples, the filter media element is secured to an inner circumference surface of the periphery wall element.

The present disclosure envisages an air purification system. The system comprises includes a shell, a blower, an electrode and a plurality of spikes. The shell has electrically-grounded wall(s), an inlet, and an outlet. The blower generates flow of air through the shell. The electrode is fitted within the shell between the inlet and the outlet and is electrically isolated from the shell body. The spikes extend from the electrode. The spikes have tips spaced apart from the inner surfaces of the walls and generate a corona between the tips and the inner surface of the walls when an high voltage electric current is passed through the electrode and thereby ionize gases and charge particles present in the air resulting in the particles being deposited on the inner surface of the walls of the shell.

A filter is treated with a reduced amount of a halo active aromatic sulfanomide compound of Formula (I):

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wherein R.sub.1, R.sub.2, R.sub.3, R.sub.4, and R.sub.5 are independently selected from hydrogen, COOR′, CON(R″).sub.2, alkoxy, CN, NO.sub.2, SO.sub.3R″, halogen, substituted or unsubstituted phenyl, sulfonamide, halosulfonamide, and substituted or unsubstituted C.sub.1-C.sub.12 alkyl; R′ is hydrogen, an alkali metal, an alkaline earth metal, substituted C.sub.1-C.sub.12 alkyl, or unsubstituted C.sub.1-C.sub.12 alkyl; and R″ is hydrogen or substituted or unsubstituted C.sub.1-C.sub.12 alkyl, where the two R″ groups in CON(R″).sub.2 may be independently selected; X is halogen; M is an alkali or alkaline earth metal; and n is the number of water molecules per molecule of the sulfonamide compound. The compound effectively suppresses odors pre-use, in use, and post-use for extended periods of time.

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 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.

A filter module and an air purifier according to an aspect of the present disclosure include a supply roller and a recovery roller, a filter wound and installed on the supply roller and the recovery roller, so that it can be used without replacing and cleaning the filter module for a long period of time by allowing a section used in the filter to be recovered in the recovery roller, and also a section not used in the filter to be supplied from the supply roller.

A food recycler includes a case, a control system within the case, and a set of user interface components that are usable to at least cause the control system to initiate a food recycling cycle. The food recycler also includes a motor within the case and a bucket that has a volumetric capacity between 2.51 and 10 liters. A filter system configured to accommodate air filters is also included in the case of the food recycler. To remove water from waste food items, the food recycler includes a drying component.

A waste gas scrubbing tower includes a tower body unit, a filtration unit arranged in the tower body unit, a washing unit that introduces water from an external supply into the tower body unit. The tower body unit includes division boards that define a plurality of channels through which waste gas flows, the tower body unit including a waste gas inlet opening and a waste gas outlet opening. The filtration unit includes a plurality of filter members, which are arranged in the channels. The washing unit is operable to generate water mist curtains in the channels to wash the waste gas so that the waste gas that enters the waste gas scrubbing tower is subjected to multiple times of washing and filtration and purification.