Bought 2. Only 1 worked. We'll see how it goes with time. That's why 3 outta 5 stars.

Appears effective. It is noisier than i anticipated.

Loved it! Can tell the difference in the air quality

I like it I think it makes a difference. I am not sneezing as much. I like that this comes with an extra filter.

Absolutely love these air purifiers with the UV lights. Definitely worth the money and I feel they work better than my previous Holmes units.

It us quiet and I had to replace my last one because it was blowing out dust. I have researched this one and so far it has met my expectations.

Very quiet and efficient, used in 31 ft camper to help with Allergies on the go. Works great for relief.

I am very satisfied with the germ guardian air.purifier. Running the germ guardian daily to help with my allergies.

Does a great job and is lite enough to move around. I can definitely can tell a difference. Highly recommend.

At first it was quiet running within three weeks very loud and rattles like something is loose. Can only run it on low it is just to loud. The cheaper one I bought is not as noisy, it is white