Heraeus® HERAcell® 150 tri-gas incubator is available with either stainless steel or fungicidal/bactericidal solid copper interior. ContraCon 90 C automatic decontamination routine covers the entire chamber interior and water reservoir, eliminating bacteria, fungi, spores and mycoplasma, and does not require the removal and subsequent re-fitting of sensors and shelves. The 5.4 cu/ft capacity unit provides a stable, precisely-controlled hypoxic or hyperoxic environment for cell. O
2 control range options (1 - 21% or 5 - 90% O
2) precisely control oxygen concentration. The incubator can be configured with either a thermal conductivity CO
2 sensor, with auto-zero self-calibration to ensure long-term stability and constant culture pH, or with a dual-beam infrared sensor that provides precise CO
2 control in fluctuating temperature and humidity conditions. A large, directly heated water reservoir and a water level alarm eliminate concerns over the humidification water supply reservoir running dry.