Almost two years ago we installed a new oven. When planning the installation, I looked for the best filtration system for asthmatics, which turned out to be the HC-16 (Carbon). Once the oven was installed I asked the installers to replace their not so good filter box with a Lennox HC-16C. Then I set the oven fan to circulate the air 30 minutes an hour, 24 hours a day, 7 days a week, just like before. As a result, the air is much cleaner, which is immediately noticeable in the low weekly dust accumulation around the house. It also eliminates unpleasant odors β charcoal takes care of that. That makes itself felt. The filters are rated to last a year of normal use and mine lasted just as long. However, I would also recommend clearing the air ducts. Update September 16 For some reason this review was not published 9 months ago. Anyway, we've heard about this unhealthy hazardous air for 11 days since the massive wildfires began. I had a stove fan running to constantly filter the air in the house. No orders, no asthma problems. All my friends have problems and they don't have breathing problems! HC was developed for this natural disaster to filter smoke (also for general operating rooms by the way!). I have to give this product SIX stars! Note to Revain: One of the stars for this article is presentation. For this point it is absolutely true anyway. Doesn't the illustration apply to the efficiency of the internal air filter? I would replace this error factor with "efficiency" or "longevity vs. advertised".
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