Replacement Filter Set for the Field Controls TRIO 1000P or TRIO 1000P2 Portable medical grade HEPA air purifier is recommended to be changed every 12-24 months depending on usage and the airborne contaminants. Includes 2 filter cartridges that contain the Activated Carbon with Prefilter in one cartridge and the other one contains the Activated Carbon with Medical Grade HEPA.
5.0Items not receivedBy David SeterI received an email asking me to rate this product but unfortunately 2 weeks have passed and I have not received my order even though my credit card has been charged.
5.0Great filtersBy Dennis WeirThese filters do a great job. I recommend them for shop or home use.