PuraShield Smart 500 Replacement Filter Cartridge fits powerful air filtration and peace of mind into a conveniently compact, portable package. This is only a replacement filter cartridge for the PuraShield Smart 500.
† Filter protected by an EPA-registered antimicrobial additive.
§Patent number US 9,370,763 B2
*Laboratory testing demonstrated 99.99% reduction of aerosols carrying MS2. Copies of the full test reports are available upon request
**MRIGlobal Project No. 311686.01.001