Bests & Worsts Reviews from Amazon

Ive had this for a week, walked into my office this morning and discovered two things. 1/ The night before I'd set the timer to sleep the unit after 4 hours, but it ran all night. The timer function was still enabled, it just didnt turn off. 2/ There was a sunbeam in the room with which I could see alot of dust flying around. I picked up the unit and moved it into the sunbeam, and not only was the dust not drawn into the intake, it floated up the side due to the pressure and was blown off into the room by the exhaust fan. After 30 minutes of the unit being off, there was no longer any dust in the sunbeam, so really this thing was functioning an an exhaust fan and just agitating all the dust in my room, actually making the environment less healthy. My room is within spec and the unit was set to fan speed medium. Awesome.