Is the clinic air that your patients and staff breathing healthy The PuraShield 500 goes way beyond a simple air filter -In-room mobile powder coated steel unit with safe and easy filter cartridge change out -Quickly and effectively removes 99 999% of aero-sols carrying harmful viruses and bacteria aller-gens odors mold mercury and smoke from the air -Equipped with a filter layer using PuraWard technology protected by antimicrobial copper silver ions PuraShield Molecular Filtration Media -PuraShield Molecular Filtration Media consists of highly porous spherical pellets impregnated with sodium permanganate (NaMnO4) Sodium permanganate allows for the safe chemisorption of harmful contaminants AIRFLOW Up to 250 CFM ROOM SIZE Up to 1 000 ft2 with 2 ACH MEDIA 22 lbs Molecular SP FINAL FILTER PuraWard protected HEPA FILTER STYLE Single filter cartridge CONTROLS 3 speed control knob SENSORS PureAwareLength - 14 5 Width - 14 5 Height - 23 lbs - 53