The Qt Hurricane Give You The Same Power You Would Expect In The Cyclone With The Added Convenience Of A 7 Day 6 Cycle Programmable Timer. It Produces Up To 1250 Mg/Hr Of Ozone To Deal With Your Worst Odor Problems. This Is A Great Choice For Garbage Areas Dank Basement Or Crawl Spaces Sewage Odors Locker Rooms Or Any Area That Needs Daily Deodorization... All Queenaire Models Have A 5 Year 15-20 Year Life Expectancy.