Laminar flow diffuser, steel or aluminum Used in operating rooms as the primary diffusers, the vertical piston of air created by the TLFR is used to discharge clean air over the patient during operations. Including snap-in, autocentering filter retainers, the new TLFR reduces the amount of time and effort during installation and removal of filters. FEATURES AND BENEFITS Laminar flow diffuser generates a low velocity, evenly distributed, downward moving "piston" of conditioned air Helps to protect patients from contaminated air Especially effective in cooling areas with heavy, localized, internal loads Internal baffles distribute air evenly over perforated face