New Comfort Commercial 4000mg O3 Air Purifier Ozone Generator Model HE-500 COMMERCIAL GRADE - Produces 4000 mg/hr of Ozone O3 giving the HE-500 the ability to purify 4500 sq. ft. Ozone Plate is rated for an Amazing 5000 hours of use. SHUT OFF TIMER - 120 Minute Countdown Timer. Simply set the timer and walk away. 3 YEAR MANUFACTURER WARRANTY - Durable, high end black finish with stainless steel construction and guarantees years of worry free use. QUIET AND POWERFUL - 80 CFM fan allows you to clean up to a maximum space of 4500 square feet. Only produces 35 DB of sound (very quiet). Only uses 46 watts of power. LIGHTWEIGHT - Only weighs 4.2 lbs and is easily moved and works on any 120 volt standard outlet. Durable stainless steel body. Power dial with countdown timer. Timer can be set for any time from 1 - 120 minutes. High CFM fan and ozone generation can effectively clean air and remove odors in 4000+ Sq. Ft. High quality thick gauge cord. Ozone can help kill mold spores, viruses and odor causing bacterias. Very popular choice of purification and odor resolution in rentals, restaraunts, smoke/fire damage restoration and the water damage/mold remediation industry Will help to eliminate any unwanted odor such as: food smells, mildew, smoke damage, cigarette, pet odors and so much more. Secondary Filtered air intake.