HepAssure™ Air Control Systems feature up to four stages of filtration, including true Type A HEPA filters, individually tested and certified to a filtration efficiency of 99.97% or greater at 0.3 microns, as per IEST-RP-CC001.3 requirements.
HEPA filter frames are metal, so they won’t support microbial growth. High-capacity, economically priced prefilters are designed to last longer, and reduce replacement filter costs.