Thenow - Model AF Series - Residential Ceiling System Brochure

Constant fresh air in your home is an important aspect to maintain the indoor air quality. A good ventilation system will protect your family from unpleasant odos and harmful contaminants such as formaldehyde and VOCs. Opening window is a simply way to increase ventilation, it can make your air feel less stuffy, but pollen and other allergens will be invited into your home at the same time.