Installation Guide

DOOR FILTER
Clean Air Residential Filter
Designed to Improve the Indoor Air Quality within Apartment Units.
There is a long list of common complaints among apartment dwellers related to indoor air
quality. This is a result of the ineffective “Corridor Ventilation Strategy” which has been
replicated since the 1960’s in thousands of buildings across North America (and internationally).
Essentially, fresh air is pumped into common corridors and then makes its way into each
apartment unit through the spaces around a unit’s entry door (between the door and its frame).
While air enters into a unit, so may a host of other irritants like dust, odor, noise, pests, light,
and in some rare cases carbon monoxide fumes from parking garages.
CORRIDOR VENTILATION STRATEGY
™