after turning off unit, how long does air stay fresh,or does the air quality revert back quickly?
1771974
The first couple weeks I kept it on at all times. Now I just had it on when we are sleeping or if allergens are high. The air remains fresh in the house. I also do not have to dust as often because it has cut down significantly.
1771975
Actually, I leave it on all the time, but I'm sure the air quality would revert back in a short period of time. Just like on a hot day, when the air conditioner goes off, it doesn't take long before the house starts getting warm again. Except for cleaning it, I see no reason to turn it off, though.
1771976
This product does not work as advertised. It keeps the air fresh only when it's on and only for the first month of use. You will probably need to buy another air cleaner. The reviews on this product are poor. I answered a similar question and my answer was almost identical to the other people's. Don't buy this machine.
1771977
I haven't really tried leaving it off for any length of time. Ours is off to be cleaned and the filter to dry well, maybe an hour a time, but in that time I don't notice the air being worse. We did have it off in the bedroom for a day or two and we needed it back on then. Keep in mind, my boyfriend smokes and we have cats and a dog in the house.
1771978
only had this for a short tine until it stopped working so would not so I did not notice any change in the air ,sorry I could not help you.
1771979
I have not turned my unit off for a period of time. I only turn it off to clean it. Sorry I can't help you.
1459323
its called economy. The fan runs slower but I don't recall if the unit actually turns off when the compressor stops.
1897510
The machine will stay on the lowest fan setting when on auto until it detects the presence of dirty air...then it ramps up the fan speed to clean the air and then cycles back to lowest fan speed again. The million dollar question is, is your sensor sensitive enough to detect when the air needs to be cleaned? I had this problem and will share with you the instructions I received from Surround Air. Do the odor, dust, or allergen sensors ever light up? Or, does only one light up and not the others? I was told by Surround Air that I set up my machine in a room without fresh enough air for the machine to "know" what clean, fresh air is. When it's set up in a room without fresh air, the sensor doesn't know what clean air is and thereby lacks the sensitivity to detect the smallest amounts of pollutants. I was told to leave the machine unplugged for several hours and then train the sensor by running the machine outside or in front of an open window to draw in the freshest air possible. That clean air would set the sensor at a high sensitivity level to the presence of pollutants in the air. It makes sense. I hope this helps.
113102
Have a good sense of smell and other than when new. There was a bit of plastic odor that went away. My wife never complained and it is in our master bedroom. For a 2 years now.. The first filter a foam whatever is too dense to pass even the slo setting. I removed that and since washable it works better. With that on the front it was making the unit try and draw at the seams where the filter in framed. Still would say it is a good non hepa. The rotational feature is ??? Don't use myself. It is an electrostatic filter so that is a charges filter to attach the pollution. The charging tends to freshen the air as a byproduct. Have a good sense of smell and other than when new. There was a bit of plastic odor that went away. My wife never complained and it is in our master bedroom. For a 2 years now.. The first filter a foam whatever is too dense to pass even the slo setting. I removed that and since washable it works better. With that on the front it was making the unit try and draw at the seams where the filter in framed. Still would say it is a good non hepa. The rotational feature is ??? Don't use myself. It is an electrostatic filter so that is a charges filter to attach the pollution. The charging tends to... » Read More Have a good sense of smell and other than when new. There was a bit of plastic odor that went away. My wife never complained and it is in our master bedroom. For a 2 years now.. The first filter a foam whatever is too dense to pass even the slo setting. I removed that and since washable it works better. With that on the front it was making the unit try and draw at the seams where the filter in framed. Still would say it is a good non hepa. The rotational feature is ??? Don't use myself. It is an electrostatic filter so that is a charges filter to attach the pollution. The charging tends to freshen the air as a byproduct. « Show Less
1348123
They have three settings. I always did mine on the highest for two fifteen cycles. And yes, it will shut off in fifteen minuted. P.S. it was great while it lasted. A none repairable air line connection broke, so I returned it and they credited my account. They were very quick. The only thing not refunded was the freight/shipping.
727799
I run it on a timer in the basement for 2-3 hours in the middle of the night. You need to stay out of the room for 2 hours or more after the unit is turned off. They say 2 hours I wait 3 or more but no biggie by the time I get up the unit has been off for 4 hours but the room smells great
376732
No. If you have the unit set to always be on and your fan is set to auto, you might notice a very faint ozone smell when the ac cycles on, but only if you're rIght under the vent and only for 2 or 3 seconds.
1821803
I have a 2000 sq ft home and don't use the forced air much, maybe 1 hour or so a day. I change mine every 3-4 months. Please see the answer from the filter salesman in reviews.
2198814
My suggestion is to leave the unit operating in a closed space, with a door (a bathroom is good for this), for a couple of hours. then check if there is visible vapor. It your living space is exceedingly dry (especially if you have electric heating), the water vapor emitted will evaporate very rapidly after coming off the transducer. It takes a while for the relative humidity in the space being humidified to be high enough for water vapor to be visible.
1699906
I have had mines for 3 months. not sure how after it is on per day. as i have 2 cats and it is on cat mode and it is always clean when i walk past it and have not smelt any smells from the unit.
1302786
I have been using two of these unit for two years and have not noticed problem.I personally feel the shut off is not fast enough to cause that effect.
130968
How many hours/day should this run? I ask this because some air purifiers must run 24/7 to have effects.Thanks
89412
We just changed ours after 4-5 years and it was dirty. The machine did seem to work well all that time, so it's not like it lost air flow from being overly dirty. Make sure to vacuum the outside periodically (it will get dusty) so that air can flow in.
1518309
Glad to assist :). As a safety pre-caution, this ozone generator does NOT have a continuous run feature. This is because very highly concentrated levels of ozone can be a respiratory irritant, so more ozone is not always necessarily better. However, ozone does dissipate quickly and converts back to oxygen and this unit does have a timer function with a max 2 hour run time that is more than sufficient for most odor removal applications. The timer can be reset immediately after it ends, in the event that a 2nd purification treatment is needed. I hope this helps and please let us know if there are any additional questions we can help answer :). Thanks!
2156247
I have turned the filter off for 2-3 days at a time and the air has remained relatively clean and clear. As soon as we cook something that lingers, I will turn it back on, let it run for a day, then turn it off. I think it depends on the quality of your air from day to day. We have pretty average (don't live in a city, not a lot of pet dander or cooking smells) air flow so it doesn't have to run all the time.
946679
We've been running it since we got it. At first, we had it on medium, to clear the air. After that, which took no more than overnight, we set it to low and pretty much left it there. This has been about 3 weeks.
945801
I have had this unit for 14 months - it has been on since that time. We have two golden retrievers and when I clean the filter it is full of dog hair so I can say without doubt the air in my bedroom is mostly free of dust and dog dander. The only time it has not run is if the power goes off - when that happens I miss the soothing sound of my Honeywell.