just changed the hepa filter, on high setting, it vibrates the whole air purifier. is this normal?
2066700
No, double check that you ordered the correct filter and that it is installed correctly.
1200779
Depends on quality of air in the home. Check filter often and if dirty, change the filter.
397133
I have it in a small room with the cat litter also. I have to clean it more often and I don't use that air purifier in any other room (when I tried, I thought I noticed an odor). I have a second one in another room. I don't think we have to stop using them but clean them more often - not just vacuum, but wash the filter. I vacuum all parts when I clean it and only wash the filters. If it wasn't doing its job, it wouldn't be so dirty.
1648641
No. It has 3 large hepa filters that last longer than other units I've used. I like the size and price of this unit. It moves a lot of air and is a bit loud. Not a drawback for me. I need background noise to distract me from my tinnitus.
2270833
Nope. That's not normal. Mine is consistently green. It turns yellow for a minute or two when I have lots of air movements and it goes back to green after. I can tell the difference in cleanliness in the air for sure.
276947
Not sure but maybe you need an additional air cleaner? Mine is fairly new and I am thrilled with it, and am considering getting another one for the other end of my place.
754829
I've been changing the charcoal ones about three months(that's what they say to do),and that seems to be working out ok. You can take the cover off, and see how much stuff has accumulated on the filter, and I guess make your own determination. Have not changed the HEPA yet, I will probably go for the year, and see if it looks like it needs to be changed. It probably will. It's my feeling that most companies have spent lots of $$$$$ testing their products under varying conditions, and have set up the change intervals to optimize performance. 04/12/2014 Just changed the complete set of filters after about a year. The red HEPA light came on, and I ordered a complete set. I figure the cost is about a quarter a day. Not an issue for the increase in air quality. Hint: (1)Press and hold the reset button until it blinks, then it will go out.(2) Use a small hand vac with brush to clean the sensor area, it will pick up impurities quicker, hence, the fan speed increases quicker and doesn't have to run faster as long. After a year, we are completely satisfied with the EL500.
1789169
the unit has air quality monitor, clean room mode, sensor for particle and dust. True HEPA filtration captures 99.97% of pollen, dust, pet dander, and smoke particles as small as 0.3 microns. *From the air that passes through the filter
150805
This air purifier on low is whisper quiet at night, no worries. We do throw a cloth over the lights, as they are more bothersome than any noise this makes. Crank it up to medium or high, and the noise is noticeable.
920284
Mine is very noisy with a high pitched whine. It cleans like a dream though!
1399060
I clean the foam-like part of the filter monthly. Most of the time I have it set on automatic and the fan speed adjusts based on air quality. We have 3 cats and 3 of these units in our 1068 sq. ft. Home. 2 people with asthma and we are happy with how it works. The only thing that may be a negative feature is the light show, it will light up the room and colors change based on air quality. I cover the lights with electrical tape.
873732
This is a wonderful purifier...It is still whisper quiet after 18month...You will eventually need to buy the prefilter...I use cut to fit I purchased on this site...they work just as well...My hepa filter lasted almost a year before needing replacement...I vacuum it out once a week...You will love this unit...
1328095
We changed ours recently, but never really looked that close. The prefilter will be the dirtiest for sure, since air flows thru there first. The IQAir said it was time to change it so we did.
2086512
Make sure that when priming the filter, you need to fill it to the very top. Then turn the fill cap so it's snug. this should relieve the pressure, after about 3 minutes the buzzing/humming should stop. good luck
317734
I haven't encountered this problem. The problem I have occasionally is, at some time after installation I find air has somehow gotten into the line and causes a terrible rattle and noise. I have been able to get rid of the problem by disconnecting and reinstalling the filters. Sorry this doesn't answer you question. Does it always happen? Maybe there is something floating around that blocks the flow when you open turn it on too fast.
218945
On my unit when the filter plugged it just restricted air flow as the air is drawn thru the filter. It seems like there is a different problem if its blowing dust out into the room such as something not seated properly.
2116852
Love my Green Aire. Depending on the fan speed, the higher the speed the noisier it is. But I have owned an alpine air purifyer in the past and find this a quiter machine. I highly recommend!