
I have allergies etc but that is not the reason I bought them. Last August we had terrible wildfires in PNW and the smoke in the air was so thick you couldn't see 10 feet ahead. It was a horrible nightmare. Windows and doors were sealed with tape to keep smoke out. Some kept coming in every time you opened the door etc so that was VERY helpful. After running two of them for 3-4 hours in our 1400 sq ft house, the smoke smell was gone. We've been running them for a week and they've been very helpful.

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