Units are designed for easy integration to existing or new exhaust ducts. The ballasts and other components are kept out of the airstream. Lamps are installed in a rack and are can be easily replaced by opening the ballast compartment. The whole rack can be removed for lamp change or individual lamps can be removed one by one.

COS-5-90 and COS-10-90 units should be installed as near to the cooking hoods as possible, or as far as possible from the discharge outlet, so as to give the longest possible contact time with the cooking exhaust. For optimum performance, the contact time for air treatment in the duct should be approximately 0.1 to 0.2 seconds or longer if possible. Charcoal filters may be installed at the last stage to mop up residue ozone if preferred