DoorFilter is a Canadian-based company which developed an innovative filtration product for improving indoor air quality. They worked on product design from 2007 to create the revolutionary Door Filter™.

Door Filter™ is an effective way to purify the air you breathe. It’s an elegant, science-based device which reduces irritants like dust, pests, odor, noise and light. It protects against exposure to common allergens which contribute to asthma development. Door Filter™ is fitted and secured to the bottom of the door at the inside face of the apartment entry door. It contains a replaceable activated carbon filter, which makes it efficient and cost-effective. The product fits all door sizes.