This Forma 3033 Steri-Cult 200 CO2 incubator has a warm air jacket that ensures temperature uniformity throughout the chamber and minimizes condensation on the inner door. Sterile HEPA filter (99.7% retention at 0.3 microns) continually returns contaminant-free air to the chamber atmosphere, thus protecting chamber contents. Interior glass door, 4 adjustable shelves. Temperature range: 4C above ambient to 45C. CO2 range: 0-20%. Humidity and temperature control (relative humidity: ambient to 95% at 37C). Chamber capacity: 10.5cu.ft.