Classic 400 Series Replacement Filter Compatible with Blueair Classic 480i, 405, 403, 402, 410, 450E, 455EB, 3-in-1 H13 True HEPA and Carbon Filter [Upgraded]

Good Value

Great quality and fit! Removes smells well. We have lots of dogs and it solves the issue of dogs taking over!Only concern is not registered with California to actually be a good filter. I did notice that with the majority of 3rd party filters. As far as I can tell this is the best 3rd party filter I’ve tested and so I would recommend it!

I ordered for my Blue Air 400 series. Fit perfectly and works well

We have two Blueair 400s, with oldest one being about 12 years old. OEM filters were affordable for the first 8 years or so, then they became significantly more expensive every couple of months. About 2 years ago, I switched exclusively to 3rd party filters, and the quality has been all over the place. This filter fits perfectly and arrived in perfect condition. The quality looks like OEM. These filters are described as true HEPA rated. Fun fact is that Blueair filters typically aren't HEPA rated (at least none of the old models, like the 400 series) , as the air resistance is greater with HEPA filters which makes the air purifier less energy efficient and causes more strain on the motor. So far the filter is working great without any complaints.

This is a fantastic filter. If you have one of the compatible air cleaners, it will fit beautifully and will clean you air as well, or better, I believe, than the OEM. It is a true HEPA H13 filter so it filters out all those nasty small particles and irritants but it also incorporates an activated carbon filter as well to get rid of nasty smells and odors. Unlike lesser filters, this one is densely packed with activated carbon so that smells cannot get past that layer as they can in less dense filters. Thick pleats give you 6-8 months of service. I tend to carefully vacuum mine with a dusting brush attachment about once a month, just to remove the large dust particles that the unit sucks in. It seems to help the filter last longer. Fits and seals well inside the air filter tightly so no dust, pollutants or smells sneak by. Recommended.

Perfect fit for my Classic 403. It was time to replace so I picked this one up for a fraction of the price of OEM. It has little carbon pellets which are good for removing odors. There is an arrow printed on the side to indicate the correct installation so the air is flowing in the right direction.The old filter had a spot to write the date of install, but this is too dark to see a black sharpie. Would be nice to have a white section on top for this purpose, but I just set a reminder on my phone, so there you go.

Great replacement filter for my Blueair 450E. It fits perfectly and looks very similar to the OEM filter. The price is lower than the OEM but on-par with some other 3rd party filters.Good filter and recommended!