A replacement cartridge that removes formaldehyde or ammonia for use in the Eraldehyde-80 and Eraldehyde-180 models. (Performance graph icon is next to product picture.) Works quickly and exchanges room air (in the E-180 model) over 3 times per hour in a midsize (180 sq ft) room and once per hour in a large (540 sq ft) room, so it only needs to be run whenever you can smell chemical vapors.
