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| Blueair 402 Air Purification System |
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| Asthma Electronics from Amazon |
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Blueair 402 Air Purification System
List Price: $429.99
Amazon Price: $299.94
Average Customer Rating:  (3 reviews)
Editorial Review: Blueair is the system for people living with allergies, asthma, or other respiratory conditions, or for anyone who wants cleaner, more breathable air. The 402 effectively purifies air in rooms as large as 365 square feet. Using patented two-stage HEPASilent(TM) technology, it captures 99.97% of the tiniest 0.1 micron particles on level one, including allergy-provoking pollen grains, dust mites, mold spores and pet dander particles. . This same filter technology earned the larger Blueair units Best of Class ranking in independent testing of Clean Air Delivery Rates. The 402 provides comparable performance for mid-sized rooms. Value-added features include quiet operation, low energy use, galvanized steel construction and easy maintenance: simply open the side, slide out used filters and drop in replacements every 6 months.
Customer Reviews:
0 of 0 found this review helpful:
 Quiet and Effective... Emphasis on Q-U-I-E-T!, 2007-03-13
I did a ton of research before deciding on the BlueAir. You'll find that the Blueair, although maybe making a bigger dent in your pocketbook than other big-name air cleaners, is your best bet for a quiet room with clean air. I've tried many other brands who claimed to be "whisper-quiet" and the like, and so far, only the Blueair has lived up to its claim.
If you put it on the HEPAsilent mode, you'll have to look twice to even see if it's on. And that's not an exaggeration! Even in this mode, you can see particles going into the intake, so it's still effectively cleaning the room. It also takes very little electricity, so it's no strain on your utility bill to leave it on all the time to maximize room air quality.
The unit is rather large, as other reviewers have mentioned, but once you get it against a wall, or under a console table, you're good to go. The only other potential issue you may have is the blue LED which tells you the unit is on. I'm a light sleeper (hence requiring a very quiet air cleaner) and the LED was so bright that I had to cover it so I could sleep. A very minor issue which will only bother the most sensitive sleeper.
The filters are very easy to change, and are also conveniently available on Amazon! They require a switch-out every 6 months, in addition to a quick vacuum of the ionizing brushes inside the machine. If you deal with odors, then try the SmokeStop filter. It's quite a bit more expensive, but it works wonders. My neighborhood had a methane gas leak, and the SmokeStop filter took all the odor and toxins out of the air. The room with the BlueAir was the only "safe" room I could be in. So I'm sure it handles cigarette smoke with ease.
You won't go wrong if you invest in one of these. Oh, and a sidenote, I have 2 cats, and a cat allergy (as well as a myriad of other allergies), and the Blueair allows me to keep my kitties close, and get a good night's sleep!
11 of 16 found this review helpful:
One word - Quiet!, 2005-12-23
After having had a typical inexpensive air cleaner you can buy at most department stores for years, I was concerned about having a filter that was noisy. Our old filter was too loud to leave on even on the lowest fan setting. In fact we would sometimes turn it on for the sole purpose of providing background noise when our kids were sleeping.
I picked the Blueair 402 because of the great reviews that it got for being quiet and for the great ratings on how well it cleans the air. It arrived yesterday and I have been impressed beyond what I expected. I may have had low expectations because of my old filter, but when I first turned it on I had to check to make sure that it was even running because I could not hear it at all! On the lowest two settings the sounds is not even noticeable. On the third setting you can hear it running, but the sound has a much better quality than other filters/fans. Even on the highest setting the noise it not that objectionable (quieter than my old filter on the lowest setting.) I wouldn't leave it at this setting for sleeping, but I wouldn't have any problem leaving it at this setting during the day, especially in a room I was not in.
We left it on setting three all night without a bother (I may consider using setting two after our initial "cleaning" period is over. My wife and I both felt a noticable difference when we woke up this morning. Part of the reason for getting this is that we have a dog and two cats and we were both waking up in the morning all stuffed up and/or sneezy. This morning was noticeably better.
The filter is very easy to replace also. The one downside is that the unit is rather large. As long as you know this going in, it shouldn't be a problem. Unless you have a very large area you are cleaning, you may want to opt against the 501 or 601 as I believe they are even bigger. I may consider getting a 201 for my kids' rooms since they are smaller bedrooms.
Overall I'm very pleased and also like the fact that the filters are environmentally friendly compared with some of the filters used in other units.
22 of 23 found this review helpful:
 Works well and quietly, 2005-12-05
After reading reviews a number of places online, I decided to buy the Blueair products. In ended up sampling the 402, 501 and 601, and ultimately returned the 501 and 601 and replaced them with 402s.
The 402 is truly quiet. This was an important consideration for me; the reason I returned the 501 and 601 was because they were noisy. The 402 has four fan speed settings. The fastest is unpleasantly noisy; I would not want to be in the room while the unit is in this mode. The next fastest, though, is *much* quieter. We usually leave the units in this mode. Sometimes we use the next-to-slowest mode, for example when I'm watching a movie and sitting in a chair right next to the 402. The middle two speeds are sufficiently quiet that I never feel like I need to use the slowest speed. (The 501s and 601s are unbearably noisy at any but the slowest setting - which is slower than the middle speeds of the 402. For 2/3 the price you can move more air, more quietly. Go figure.)
The only downside to the unit is size. It is about the same size as a tower PC. It's tall enough not to easily fit under furniture, and it's airflow pattern (in one of the skinny vertical sides, out the opposite side) means that the best placement is with one of the long sides against a wall. If wall space is at a premium, it can be hard to find a place to put it.
I haven't had the units long enough to replace the filters yet, but I have taken out the filters that came with them, and put them back in. It was very easy to do. After two months, only one filter is showing any visible dirt - but the house is *much* less dusty.
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