Genuine Blue Pure 311i Max Air Purifier Replacement Filter

Quiet and it really does a superb job.

Really like this replacement filter. Nice to have the genuine Blueair version, and I like the design. The model names are very similar, so double-check yours: this F3MAX is for the 311i Max, not the 311i+ Max or 311 Auto.

After about 9 months in out the box with 13% filter life left on the app it was time to replace it. It does a very great job if you vape indoors a lot or have company that do. It will get loud if you want to dissipate the smoke quicker but it’s usually on max for 2 hours to clear out the room. The size is correct to OEM. I hope to see another 9 months before replacement. Remember to clean your pre filter!

Filter is very durable and of great quality. File was very easy to replace and cheaper purchasing here than on manufacturer website! Would recommend!

Works great. So much so we git one abd sent to the daughter ti ckean up the aur there

The Blueair app says this is the replacement filter for the 3450i. This is false. The filter is an inch too short.

The item received was a returned item not packaged well and had slight damage. Otherwise, it works fine. Taking a star off for the packaging of the return item and with damage sold as new.

Great! Easy to install!

The Blue Air air purifier tells you when to replace the filter, as per the specs it's about after 6-9 months of use. I replaced mine almost one year later, after purchasing my 311i max air purifier. I prefer only using a genuine replacement filter, maybe this is why it lasted so long. I also remove the outer material covering the filter about every 3 months and wash and dry it, to remove the dust. I love this air purifier, the 311imax is in an open space covering about 1,000 sq ft. It really kicks up and get rid of the smell when I fry foods like fish etc. I also have Blue Air 411i max in the bedroom.

Not much to tell but it does replace factory filter perfectly (the biggest unknown with online) and seems to work as well.

these are the real deal very good filters

Great for removing dust, really helps. Love being able to monitor via the app

I purchased this BlueAir filter for my BlueAir 311i MAX smart air purifier. I believe this is the second purchase since owning this machine. As it is a factory replacement, the fit is fine, and it is easy to install.