I do believe we have purified air. A neighbor was over that has asthma. He said he could definitely tell it was working. My husband last month was sneezing in the house A LOT. I told him to order this purifier now! It was sitting on his desk "to do". He is no longer sneezing!

This purifier does a GREAT job of taking particles of dust and pollen out of the air. Our neighbor even noticed how he could breathe better while in our house. Our furnace air filter isn't as dirty as it use to be.

Our unit is definitely a game changer especially for my wife who has respiratory issues. She has noticed a change in her comfort level in regards to her breathing. Thank you

I replace the filter on my air purifier every 6 months. It really helps with reducing allergens, smoke, and pet odors. I feel it helps reduce my asthma attacks.

I love this air filter. It is much quieter than I thought and I love the fact that I can control it from my phone. Noticed increase in air quality in house. I already have two of the smaller ones that you can carry with you. Must have purchase.

I will use this filter in my PureZone for as long as the good lord allows me! It's easy to replace once you see how the filter system works. I run it on low often and on high as needed when company is over and the filter lasts months and months.

Extremely quiet and takes up a small footprint in my living room. When I clean or dust in the room I can see that the light turns yellow meaning it is cleaning my air!

The one issue I have with this air purifier is that when the lights in the room are off you can't see the controls on the device. I feel like they should have illuminated the controls. Besides this flaw it's a excellent purifier.

This air purifier is effective at eliminating some household odors, but not as effective or efficient as I had hoped for removing fragrance, chemical & other impurities.

Can't find original replacement filters anywhere. The product is just a fan without the filter.