You won't believe these 10 facts about people. Cortisone cream is a topical corticosteroid ointment that reduces inflammation to areas where applied. It is often used to topically treat arthritis pain from inflammation of the joints, as well as inflammation of the skin caused by various skin disorders and conditions.t is also a primary ingredient in over-the-counter hemorrhoid medication. In prescription strength, cortisone cream may be prescribed to treat skin conditions that are unresponsive to over-the-counter products.
A damper is a valve or plate that stops or regulates the flow of air inside a duct, chimney, VAV box, air handler, or other air handling equipment. A damper may be used to cut off central air conditioning (heating or cooling) to an unused room, or to regulate it for room-by-room temperature and climate control. Its operation can be manual or automatic. Manual dampers are turned by a handle on the outside of a duct.
An air handler is usually a large metal box containing a blower, heating or cooling elements, filter racks or chambers, sound attenuators, and dampers. Air handlers usually connect to a ductwork ventilation system that distributes the conditioned air through the building and returns it to the AHU. When the air handling unit is in cooling mode, heat is released as air passes through the matrix in the exhaust airstream, during one half rotation, and absorbed during the second half rotation into the supply airstream. 2  Heat recovery efficiency up to 85%.