Posted by a reviewer on Amazon

But if that noise would bother you then either choose another air purifier or just run this during the day and have it off while you are sleeping

Posted by a reviewer on Amazon

This is just a great thing to own for fresher air especially during winter and summer months when opening windows isnt much of an option and even if you open the windows someone with allergies will be cranking this thing in their room

Posted by a reviewer on Amazon

Its annoying replacing filters because theyre pretty pricey the main filter and theres 2 separate filters

Posted by a reviewer on Amazon

Model hpa100 unit is about the size of a 5 gallon bucket

Posted by a reviewer on Amazon

I ran the unit through one night of sleeping so far

Posted by a reviewer on Amazon

So just keep in mind that this is not passive air cleaning

Posted by a reviewer on Amazon

This one did ok i am sure it will service someone else just fine

Posted by a reviewer on Amazon

It just was not our choice