Thermo Scientific 3111 CO2 incubator. These incubators provide sample safety in the event of energy loss as they maintain the temperature for longer than models with an air jacket. They feature a heated door with adjustable temperature that keeps the internal glass door free of condensation for a better view of the cultures. Audible and visual alarms indicate temperature deviations from 0.5 ° to 5 ° below or above the set point and CO2 concentration deviations from 0.5% to 5% below or above the set point. The chamber's validated HEPA air filtration system minimizes the risk of airborne contaminants entering the incubator after opening the door, so you can keep your crops in Class 100 air quality conditions.