Does it blow dirty air into the room or is it a closed system?
1733605
I really like this vacuum, My mother is asthmatic and she did not complain a bit when I used this vacuum in her home. I really like the deep cleaning it does and gets more of the pet hair than my previous vacuum. I give this an A+
1733606
I can't say for certain if its a closed system or not, but I haven't seen/ noticed dirty air. This is a great vacuum.
1798631
It is a ventless system but you need to operate it in a room that is vented. Since it is using oxygen from the room for combustion it will deplete a sealed room of oxygen.
1673908
no but i keep mine runing all the time blowing out and it keeps the air clean and fresh without loosing any heat or air cond-Its such a quiet and smooth fan-I dont think they make one that closes up-
696136
power is one thing, but if the incoming air doesn't have an exit to move the air through the room the fan doesn't work very well.so remember the airflow through the room is just as helpful as the "power" of the fan
1041458
Our Unit is kept in a metal building. Dirt and dust doesn't seem to bother it. It does seem somewhat sealed. It is not around water.
1714154
it's only a fan. It will blow whatever temperature air from the area you place it in. The movement of air will feel cooler then stationary air.
1458141
sounds like a vacuum cleaner. however. it rarely needs additional air. I use my as a bed its great
1997783
I have been surprised how little dust we have seen. Our laundry room is closed. There is still a great deal of heat that exits the home. However, our basement warms up, now, when we operate the dryer. The filter is easily cleaned. Even a clogged filter produces heat in your home, however.
885572
I have had this particular unit since this summer. It has been consistent and reliable in keeping a constant humidity. However, periodically the "dirty filter" light will come on, so I will then clean it. I am not sure if the filter is not cleaned for an extended time, if it will shut=off?
1220913
It's powered by suction. What the other answer is describing is what happens when it gets clogged and breaks. It works great if you clean it out on a regular basis.
1202843
Does good job on a 9x12 room; keep doors closed for maximum treatment. Can be noisy but you get used to it. I've had mine for about two years and it's not working as well as it used to. Could be how I clean it? Requires some vaccuming to get all dust out of nooks & crany's. Done well and once a month it really helps allergys & produces a clean smell (like after a rainstorm passes through). Cons: Noise, short life? Pros: Clean air
490302
I have had this installed for 6 months now. It is typically used with a variable speed control in place of an on/off switch. It is an industrial strength fan. When it is running at full speed it is moving a lot of air, making it necessary to raise your voice a bit to talk over the noise. But it really airs out the room in a hurry. At low speeds, it is much quieter. The air noise is just a whisper, but there is still a noticeable hum from the motor.
502783
There is an exhaust port. And the air that comes out is hot. But I don't believe dust or debris can escape, since it has a filter there. I've never noticed any dust or debris coming from there.
2124582
Don't know. Didn't pay attention. The thing has been working day & night for years without a problem. You just have to keep it clean. This model is only good for one room. I had a bigger one years ago that handled several open rooms; or seemed to.
489889
It sucks air in from the sides and blows it out the top. I keep mine about a foot from the wall.
984724
I run mine on low 24/7. If the air needs super-cleaning (because of viruses, mold, etc.) I put them on high and close the door(s). Then run them for about an hour. I've heard that people and pets shouldn't be in a closed room with the air cleaner on anything higher than the low setting, but am not sure if it's harmful. You can turn the ionizer off. Been using this model for around 5 years with no problems...
50519
The fan blows out Thursday the front at the top. I think there is just some type of filter built-in. I really like the unit.