Product was order and received in 5 days. Setup was very easy and with 10 minutes was filtering room air. At full fan speed the ambient noise was still low enough to carry on conversations without being aware of filter being on. Ordering process was super simple. Two family members are now interested in ordering their own room filter. I give it 5 stars.
We've had our until for three weeks now and love it. First of all, it's so quiet. Second, it reacts to changes in the air all the time. I burned a piece of toast and it automatically detected the "smoke" in the air and kicked up its speed to remove it. Does the same thing when I shook out a rug near it and ran the vacuum. Pretty sure it's doing its job. Love it!
Great product, virtually quiet on low speed. Definitely improved air quality. Have older model purchased in 2014, still works like new. Purchased additional units for other areas of home. Newer units are quieter.
My second unit is quiet but the fan still has a wobble like the first unit. The first unit was quite for 2 hours then started making noise. The unit would be perfect if the fan ran true without a wobble.