This newly reconfigured Oxygen therapy door help you give additional oxygen support to your patients and provides a clear view of the pet. Shor-Line made it even more efficient to help keep more O2 in the cage. Add this to your ICU offerings or make it part of a "step down" unit. Product features: Easily retrofits to existing Shor-Line cages with a soft, closed-cell foam that makes the door fit securely. The 3/8" thick clear Polycarbonate door has upper and lower adjustable vents for reduction in condensation on interior door surface. Semi-disposable humidifier (3 included) positioned in a removable chamber allows aerosols to be heated or cooled. Packing the chamber with ice helps keep the cage cooler. Digital readout for temperature/humidity with minimum and maximum memory function and Centigrade or Fahrenheit temperature readout. Port is provided for an optional O2 meter. Optional hose and mask for direct oxygen to assist a recumbent animal. Cage sold separately.