I've been using this air purifier in my home for a month now and the results have been excellent. After I put it to the test, the air quality in my home has improved drastically. My allergies and sinus issues have reduced considerably, making it easier for me to breathe. The only downside is that it's a bit noisy, but it's a small price to pay for clean, fresh air. I highly recommend this air purifier to anyone looking to improve their indoor air quality.