Applications For automation of awning or hopper windows, skylights, or curtain wall vents. For commercial, institutional and residential projects, including schools, universities, municipal buildings, offices, gymnasiums, homes, condos, and more. Natural Ventilation systems, such as operable windows and skylights, save energy and lower operating costs by reducing air conditioning and heating use. LEED credits for green building projects can be earned under Indoor Environmental Quality for Natural Ventilation, Daylighting and Views. Smoke Evacuation systems reduce smoke, heat and casualties during a fire; AFI actuators are SHE certified.