It's no secret that homes, businesses, hotels and other commercial facilities need ventilation to reduce pollutants, moisture and odors. For example, if excess moisture is not removed from bathrooms, high humidity levels can lead to mold growth and buildup of allergens, as well as potentially serious structural damage.

But did you know that exhaust fans are only one ingredient to effective ventilation? With its unique timer-controlled mechanism, the MarkTime® Wall Box Technology ensures rooms and facilities are properly ventilated for the right amount of time, while also saving energy.