Patent ID: 8252099

Claim:
An air purifier comprising: a. a housing having an inlet for receiving air and an outlet for exhausting air, the housing providing an air flow path for the flow of air in a downstream direction, from the inlet towards the outlet; b. particulate pre-filtration comprising one or more pleated particulate pre-filters within the housing downstream from the air inlet, the pleated particulate pre-filter(s) having a MERV of 7 to 8, with an Average ASHRAE Dust Spot Efficiency (Standard 52.1) of 30% to 45%; c. VOC pre-filtration within the housing downstream from the particulate pre-filtration, the VOC pre-filtration comprising carbon and KMnO 4 ; d. particulate post-filtration comprising one or more pleated particulatepost-filters within the housing downstream from the VOC pre-filtration, the pleated particulate post-filter(s) having a MERV of 7 to 8, with an Average ASHRAE Dust Spot Efficiency (Standard 52.1) of 30% to 45%; e. UV filtration within the housing downstream from the VOC pre-filtration, the UV filtration comprising a plurality of lamps extending longitudinally through the housing, the lamps adapted to generate UVC radiation having a wavelength in a range of about 220 nm to about 288 nm; f. VOC post-filtration within the housing downstream from the UV filtration, the VOC post-filtration comprising carbon and KMnO 4 ; and g. final particulate filtration within the housing downstream from the VOC post-filtration, the final particulate filtration comprising one or more filters having a MERV of 16 or greater with an average ASHRAE Dust Spot Efficiency (Std. 52.1) of 95% or greater.