Incubator contamination is inherently a potential for all incubator manufacturers. Typical laboratories have thousands of airborne contaminants that may enter a tissue cell culture incubator during a door opening, and enter the perfect growth environment to survive and reproduce. Elimination of these airborne contaminants as they enter the incubator would be the best solution, but not feasible given today's technology. However, other potential solutions to the contamination problem are available today. High Efficiency Particulate Air (HEPA) filters are available to remove airborne contaminants thus providing a solution to the problem.
NuAire incorporates a HEPA large capacity capsule filter into the NU-2000, 4000 and 8000 Series Autoflow CO2 Water-jacketed Incubator to remove airborne contaminants that enter the chamber during door openings. The HEPA filter is incorporated into the recirculation system. The chamber air is drawn into the inlet tube, to the pump, through a 0.3 micron HEPA inline capsule filter, through a 0.3 micron Hydrophobic HEPA filter to the IR Sensor and returned to the chamber. The recirculation provides the filtration necessary to remove these airborne contaminants and reduce the possibility of chamber contamination.