Abstract: Provided are filtration systems, filters, and corresponding methods of installing and using a clean room filter. A filtration system may include a housing defining a vent opening and a filter opening. The housing may include a knife edge disposed about a perimeter of the filter opening and configured to extend downwardly. The filtration system may include a filter removably attached to the housing. The filter may include a frame having an opening and a channel disposed about a perimeter of the opening. The filter may further include a filter substrate disposed in the opening of the frame, a gasket disposed about a perimeter of the opening within the channel, and an adhesive compound disposed within the channel between the gasket and the channel. The filter may be configured to engage the knife edge of the housing, such that air may be configured to pass between the clean room and a duct via the filter.

Abstract: A deodorizing air filter media which is composed of a web of non-woven fibers having myriad discrete particles of a deodorizing component, such as sodium bicarbonate, uniformly dispersed throughout the thickness of the web. The media is fabricated by a two step process, wherein a non-woven web is passed through a first aqueous solution including a binder, and then dried to cured the binder and anchor the crossing points of the fibers in the web. Next, the dried web is passed through a second aqueous solution having a binder in a reduced concentration, together with a particulate deodorizing component suspended therein. The web is then again dried to cure the newly added binder and anchor the particulate deodorizing component to the fibers.

Abstract: A deodorizing air filter media which comprises a web of non-woven fibers having myriad discrete particles of a deodorizing component, such as sodium bicarbonate, uniformly dispersed throughout the thickness of the web. The media is fabricated by a two step process, wherein a non-woven web is passed through a first aqueous solution including a binder, and then dried to cured the binder and anchor the crossing points of the fibers in the web. Next, the dried web is passed through a second aqueous solution having a binder in a reduced concentration, together with a particulate deodorizing component suspended therein. The web is then again dried to cure the newly added binder and anchor the particulate deodorizing component to the fibers.