Buy blueair 501 for sale & Best Price!!!
Product Description
blueair is the system for people living with alergies, asthma or other respiratory conditions, or for anyone who wants cleaner, more breathable air. A revolutionairy combination of advanced filter media and an encapsulated ion particle charging chamber makes it possible for the Blueaur air purification system to achieve better results than either technology alone. Our patented HEPASilent filter technology is proven effective at capturing 99.97% of the tiniest 0.1 micron particles. The quietest unit in the industry, blueair's low-density filter clean larger volumes of air more quietly than any other unit in the industry. Hence the name HEPASilent(r) a blueair Exclusive. Bacteria-resistant filters, blueair's filters are made of bacteria-resistant polypropylene. Because polypropylene is waterproof, the filters naturally reist contamination from bacteria, viruses and mold without chemical additives or washes. And the filters only need replacement every six months, a process that takes under 30 seconds. The blueair 501 is for room sizes up to 620 square feet.10 year limted warranty, Award-winning Swedish design
Read more Blueair 501 Air Purification System 
I bought this unit 3 years ago for my son who suffers severe allergies during spring/fall season. I did my research and found out that Blueair is top of the list for it's function despite the cost. It has four levels to the switch and first one is HEPA-Silent which you don't hear. Second level is also very quiet. Third level sounds like quiet fan (white noise) and last one is very loud and I only turn it on when I'm vacuuming the house. The filters are quit expensive and need to be replaced every 6 months. But when you take out the old filter, you don't regret buying this machine because the filter which used to be white has turn to almost charcoal grey/black color. Also, I think you need to suck up dust from the machine's internal side now and then to make sure that the machine works properly. Because first six-months I did nothing and when I opened the machine to replace filter, it was caked with dust inside. So now I open up and clean inside with powerful vacuum evern two months to prevent dust build up.
I'm actually looking into buying another one for bedroom. And I know the maintenece cost will double but I totally think it's worth it.
Eliminates odors from cooking, smoking, even painting!
For smokers, do use special Smoke Stop filters and keep it on high setting.
I have tried many types of purifiers over the years. My allergies would always lay me out and severely impact my quality of life. After becoming disillusioned by the Honeywell HEPAs and the Orek (eegads never buy the Orek!!!!!) I started a very detailed research project.
Consistently, the BlueAir purifiers were at the top of every review and recommendation list. The only things beating them out were either attached to a house (I live in an apartment) or over $800. While the BlueAir itself is not cheap, I decided that my health was not worth saving the few hundred dollars another Honeywell would save me.
It was the best $500 I ever spent.
It runs quiet, it moves huge volumes of air and the filters are obviously doing their job. My allergies have subsided to a point where I no longer take meds!
The unit has 4 speed settings, the lowest being called "HEPASilent" which is barely audible, and the highest being much too loud to use during sleep. I find the 3rd setting to be the best performance to noise ratio. I can sleep perfectly fine at this level and I am a fairly light sleeper.
The unit can be heavy for lifting purposes, but comes on casters so you can easily wheel it around to different rooms.
If I had any gripes about this purifier, it would be the lack of a pre-filter. The unit essentially sucks air from the bottom and shoots it out the top, front, and back. Dust accumulates on the metal housing frame and must be cleaned during each filter change. Cleaning the housing can be a tad difficult unless you have a very slender vacuum hose.
The other potentially annoying thing is the fairly bright blue power light on the side. I hardly even notice it after over a year of use.
I bought this unit last year. It does a good job of eliminating the dust. The owners manual says to replace the filters every six months. When I first read that, I thought that was just a tactic to make more money. After six months I checked them, and they needed to be replaced. With new filters, I turned it up to the next higher speed, and within three months they were dirty. The filters are not cheap (other brands aren't either), but that's the price I have to pay for cleaner air.
This unit has four speeds. On one and two, it's almost silent. On speed three you can hear it, but it's not objectionable. I leave it on that one all the time. The highest setting is too loud.
The unit uses electostatic technology, and at first the air seemed to have an unusual quality, like being at a high altitude. But after about a month I got used to it, and now I would never turn it off.
The only objection I have to this and most of the low to moderate priced home air purifiers is they don't adequately eliminate gases and/or odors. But as far as overall performance, this does a good job.
I bought three of these for our townhouse - 1 for each level. We have 27 windows in this house (at least) and the dust is unbelievable! At first when I plugged in these purifiers I wasn't sure I noticed any difference so I did a test. I dusted in the master bedroom which gets the most dust (8 windows alone)and let this puppy go. Oh there was still dust after a two week period but then I dusted again and turned it off....the room was caked in dust so this purifier is definitely doing some heavy duty work. We've had these now for about 2 years and I think they're great! I'm glad we went with this model. After 6 months just look at your filters - it's amazing how much dirt this machine takes in.
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