Blueair 400 Series Particle Replacement Filter

I hate paying so much for a filter as we have 3 of these units BUT I think it’s worth it to buy the genuine model. I’ve tried a couple of different knock-off brands and I just don’t think they work as well as they seem to mess up the auto function. One of my units continuously kept going back and forth between settings 2 & 3 and the only way to stop this was to turn off auto. This has not happened with the Blueair filter. When changing the knock-offs they also don’t seem to be as dirty as the Blueair brand for some reason plus the Blueair seems to slide in and fit better and are easier to remove. I'm not a germophobe or fanatic but my air just seems fresher.These new ones I just purchased have different instructions on the sides. Instead of saying “This side must face back or front” there’s just a sticker with an arrow indicating AIR FLOW DIRECTION. I pulled this sticker back and sure enough it covered the original side placement instructions. I’m really not sure if this is really clearer as it was a little confusing to me. However, looks like the metal side goes facing the intake and the corrugated side faces the control side. Seems to be working great and I think I’ll stick with the Blueair from now on. Don’t be alarmed by the slight oil odor when you first install as it seems to dissipate very quickly.

Was happy to find this filter sold at Amazon. I have owned a Blueair 402 air purifier for over six years and it has been a great purchase. Even though the machine and filters are expensive, they are well worth the investment. I run my machine 24/7 during months when pollen is heavy. In the summer, I run it 24/7 to help keep my bedroom cool and it is wonderful to sleep in cool, CLEAN air. That's six years of constant use and have never had to do any repair...just replace the filter a couple of times year.I have recommended the Blueair 400 series to my friends and those who have purchased it have always thanked me as it works great for them too.

I get this replacement filter every 6 months for my Blueair 402 model. It has changed slightly over the years (I have owned the 402 for about 8 years already), but it is still the same great quality, and super easy to change out.Open the side door, pull out the old filter, vacuum the inside of accumulated dust, slide the new filter in. Voila! Clean air for another 6 months!It smells a little bit funny when you first insert a new filter, but just turn the cleaner on high and let it go for a couple of hours. The smell dissipates quickly.As an allergy sufferer and multiple cat owner, the Blueair is a necessity for the bedroom. Silent, clean air.

Haven't used my BlueAir in a while. Have an older unit. Concerned about reviews talking about odor. Opened package and airing out just in case. Otherwise, looking forward to using my BlueAir 402 again.

Very expensive. The filters work fine.

I use these 400 series filters on my BlueAir Classic 405, and I haven't had any problems. Whenever it's time to install a new filter, the old one has a lot of dust and other particles on it. It's especially visible when you compare the old filter next to the new one that you're going to replace it with.

I have had allergies for years, shots on two arms every spring. And after years of suffering, my brother told me about Bluair and I got it. This thing is short of miracle. The Bluair series is great. It filters air, odors etc. And from the time I have gotten the Bluair and the filter, I have had limited or no pollen issues. It sucks the air and filters air so well. The filter is by other comparative standards, on the expensive side, but it really lasts. And you can see how black it gets. One filter lasted more than 6 months plus longer. But for health, reducing my allergies, removing odors...can't beat it. I love this thing. It is by far the best investment I made. No complaints.

Blueair recommends changing the filters for their air purifiers every six months.The entire system is not inexpensive because the purifier is expensive and the replacement filters seem relatively expensive.However, the performance is valuable for anyone with allergies. By the time my filters are changed, there is noticeable build-up of particles so I know that this is something that we would be breathing in if not for the purifier.When I think about what our purifier does, running 24 hours a day, 7 days a week, for 365 days a year, I am appreciative for our cleaner air and decreases allergy reactions. The cost of the filter, changed twice a year, is approximately $0.45/day. For me, and my family, this is a good deal!

The best air purifier brand in the market. I have been using Blue Air Air cleaners for over 8 years. Eliminates dust, pollen or even food smell. Sneezing, hay fever and itchiness are gone as well, and my eyelid doesn't feel heavy. I am extremely tidy, but London's air quality is terrible. I would not recommend any other brand than Blue AIr. The filter is heavy on price but your lungs are worth more than that.

Good quality

５年位は使っています。ワンルームにブルーエアクラシックの40畳用のやつをぶん回しています。最近、センサーが効かなくなってサポートに出したら、5万くらいで新品の次機種に交換すると言われました。センサー交換だけなら２，３万です。今迷っていますが新品交換すると思います。スモーカーにとっては必需品です。

I wish this was more readily available but, when you can get hold of it, it is very easy to fit. Just remove the packaging and slot into place. My old filters were filthy and had needed to be replaced for a while; the difference in air quality afterwards was marked. I only use genuine filters, at least at the moment, but may need to review that should the genuine article remain difficult to source.

Excellent, mais assez chère Merci