I bought this for my elderly mom with breathing problems...first used, after 15 minutes i couldnt believe how much of a difference it made to the quality of air in her room...it works silently so she can sleep without being disturbed...the light are like night lites, so she can see at night...i would definetly recommend this product for everybody but especially if you have breathing problems....the only reason it has 4 stars pis because pit came in a different color than picture..it is a dark brown
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