An air handler provides ventilation, which is used to regulate the quality of the air indoors.

Excess moisture, smells, and pollutants can be regularly reduced or eliminated by replacing with outside air. However, a lot of energy is needed in sticky environments to remove a lot of moisture from ventilation air.

Mechanical debilitates are frequently used in restrooms and kitchens to manage odors. Variables in the design of these frameworks include the noise level and stream rate, which are related to the fan speed and fumes vent size. For certain applications, direct drive fans can reduce the need for assistance. Roof fans and table/floor fans circulate air within a room in an attempt to reduce the perceived temperature dissipation of perspiration on tenants’ skin. Roof fans can be used to circulate warm stratified air from the roof to the floor, keeping a space warmer in the winter because hot air rises.