Rated 3.6 out of 5 by 64
Rated 1.0 out of 5.0 by HotSleeper Great idea, poor functionality
I purchased this to use in my upstairs bedroom that tends to stay a little warmer than I would like. Because of how my registers are angled, it would not fit into the hole, however that is not why I consider this to be a horrible waste of money. I plugged it in and held it over my vent while my ac was running. Without actually having a meter to measure the cfm's coming out of the unit, I can't prove it, but I think there was actually less air coming out with the booster over the vent than with the vent by itself. The noise that it puts out is not horrible, but since it didn't seem to put out any air to accompany the noise, I chose to return the unit.
July 31, 2014
Rated 1.0 out of 5.0 by CC Too Noisy doesn't deliver
When I bought it I thought the air was going to flow cooler and faster. None of this.. It makes a lot of noise and it really doesn't deliver.. Don't buy it
August 25, 2015
Rated 2.0 out of 5.0 by Indyjag71 So So
The product is extremely bulky and has to be plugged in, making it difficult and not very stylish...especially when being put over a ceiling register. The fan is not very powerful, so when the air is on, though there is some noticeable difference it is not much. I should have just bought the portable air conditioner and been done with it. Don't waste your money.
July 29, 2014
Rated 3.0 out of 5.0 by ariant Great while it lasts
They work great, but die quickly. We have bought at least 8 or 10 of them for our large, poorly HVAC'd home. It takes a few moments to adjust them for heat vs. A/C, and they work great. I'd guess the average life span is about 3 months. We also noticed, one died immediately upon being lightly bumped by the hamper being replaced. There is some overly-delicate circuitry inside that I would assume leads to their quick demises.
I assume if manufacturer spent a few more pennies on the boards, they would be a 5-star item.
April 24, 2012
Rated 4.0 out of 5.0 by Kathleen great energy saver
I have a long house and the ac doesn't really get to the back rooms and the front rooms are cold, so I got this. It is great it pulls the air into those rooms that need it and the ac doesn't work as hard. The only drawback is that it is about 2" high so it has to be on a vent where there is little traffic so no one trips.
May 28, 2006
Rated 1.0 out of 5.0 by JimA Useless
The idea behind the product makes sense: this is a fan designed to draw the air from the vent duct into the room, presumably because the A/C blower isn't forcing enough air into room to keep it cool or warm.
Unfortunately, it doesn't work. It's a fan and it blows some air, but there's no seal around the vent to pull the air from the A/C system. Basically, it's just recirculating the air near the floor, not from the A/C system.
So, it's useless. And it's loud, really loud.
September 2, 2014
Rated 5.0 out of 5.0 by DHD It works!
I have a guest bedroom on the second floor that stays at 76 degree's, The lone register just can't keep it cool. With guests coming, i bought this and it cooled the room down to 72. Forget the negative reviews. Its not near as loud as a floor or window fan, and the trade off is a cooler room.
June 15, 2015
Rated 1.0 out of 5.0 by Reemy Sounds like a helicopter
Horrible. Unbalanced fan blades cause vibrations that could be heard on the floor below. I thought there was a distant helicopter hovering, but after some time I finally realized it was this fan vibrating the vents. Air output was very low.
March 10, 2015