Nuwave Smart Air Purifier for Home Large Room up to 1,200 Sq. Ft, Auto Function Monitors Air Quality & Adjusts 6 Fan Speeds 5-Stage Filtration System Includes 8 Additional HEPA & Carbon Combo Filters

Purchased with extra filters early April 2025 and was not difficult to assemble. Seems well made and relatively quiet on lower speeds. I have been using it on 'auto' for setting so it does move to higher speeds at times and will definitely hear it at higher speeds. 2100 sq ft house in rural area next to farming field (soy beans this year) and placed in rarely used living room. I have noticed a reduction in dust since using. I haven't noticed much of an increase in electricity use (I do track monthly KWH) so it is fairly efficient. Using for 4 months 24/7 with zero problems. I have not received a warning light to clean the filters after 4 months so I am planning on cleaning filters on first of the month so I can't comment on cleaning. Time will tell on longevity. Kind of pricey (at least for me) but I am satisfied with the purchase.

Really works. When my breathing is struggling I turn it up to 4 or so and within an hour my breathing is better. We just bought a second for the bedroom and I can tell that has helped how I feel when getting up in the morning.

My 2nd one, works great

Really quiet on low. We keep it in the corner of a large room on auto. Usually never hear it but once in a while (cooking, etc) we’ll hear the fan spin up. It’s noticeable then, but also a good reminder that it’s working! Haven’t had it for long but happy so far. Picked this one because it was rated the best purifier by the review site Rtings.

Definitely a difference in air quality with it running is a bit loud but worth the money