2 Pack 311 Auto Filters Replacement, Compatible with Blueair Blue Pure 311 Auto Air Purifier, 2 in 1 HEPASilent and Activated Carbon Filter

These replacement filters for the Blue Air 311i Max deliver exactly what I needed. The functionality is excellent they trap dust, pet dander, and odors effectively. It is easy to slide right into place without any struggle and the size is perfectly compatible with the blue air 311i Max just like the original filter. The quality feels premium the materials are sturdy, and the layers of HEPA and activated carbon are dense and well-made. I also appreciate that it comes in a 2-pack, which adds a great value for money , especially compared to the branded replacements. Highly recommend for anyone looking for reliable, high-quality filters that don’t break the bank!

Fits perfectly. Works well.

Good price fits like original filters. At 1/2 the price I’m willing to buy these.

Great generic filters. Easy to install, would buy again!

Worked great, love the lower price

DO NOT BUY IF YOU ARE BUYING IT FOR BLUEAIR 311. This is not compatible at all. The filter is much bigger than the purifier itself. False advertisement.

Good

Fits the Blue Pure 311i+ Max as expected. Do note that the Blue Pure 311i Max and the Blue Pure 311i+ Max are two different products. The former is 11.2" in length while the latter (this product) is 13" in length.

Fits my Blue Air 311 Auto air purifiers very well. The diameter is about 1 cm larger than the original filter but once the outer fabric is in place the fit is snug, no gaps. It was easy to remove the older filter and install the new one. No tools needed.

Seems exactly like Oem

Works as well as the original for a reasonable price.

Lesson learned buy only the proper filter for your machine. Don't try cheaper filters

These ate a perfect match for my air cleaner at half ghe price.