Patent ID: 9375669
Filing Date: 2016-06-28
CPC Classification: B01D

Claim Text:
1. An air filtration apparatus operable to be coupled with an air return of an air conditioning or heating system comprising: a frame, said frame being adaptable to be releasably secured within the air return, said frame having an upper member and a lower member, said frame having a first lateral member and a second lateral member, said upper member, said lower member, said first lateral member and said second lateral member being contiguously formed, said frame being adjustable in a lateral and a longitudinal direction so as to accommodate any size air return, said frame having an opening; a first media receptacle, said first media receptacle being integrally formed with said frame, said first media receptacle being formed so as to have an interior volume; a second media receptacle, said second media receptacle being integrally formed with said frame opposite said first media receptacle, said second media receptacle having an interior volume; an air filtration media, said air filtration media having an upper edge and a lower edge, said air filtration media having a first end and a second end, said upper edge of said air filtration media having a notch formed in said upper edge proximate said second end, said air filtration media being releasably stored in said first media receptacle, said air filtration media extending across said opening of said frame and into said second media receptacle, said air filtration media operable to be transitioned from said first media receptacle to said second media receptacle; a media moving member, said media moving member operably coupled to said air filtration media, said media moving member operable to move said air filtration media from said first media receptacle to said second media receptacle; and an alarm, said alarm operable to monitor said upper edge of said air filtration media, said alarm configured to provide an alert to a user ensuing detection of said notch.