If you need new filter cartridges for your Philter Labs PHREND, this 2-pack is for you! This package contains two PHREND cartridge filters so you can continue smoking in public without bothering anyone with second-hand smoke or vapor.

These biodegradable filter cartridges won't add to the growing pile of plastics plaquing our landfills and ecosystem for decades as they will completely biodegrade within 3 years. The packaging bag is compostable too for your peace of mind. Each cartridge filter will provide you with 500 exhales.