3 Pack Blue Pure 411 Filter Replacement Compatible with Blueair Blue Pure 411 Genuine, 411+, 411 Auto and MINI Air Purifier, Package Include 3 Pack 3-in-1 HEPA Filters

It was fairly easy with 4 hands. I had difficulty slipping it over cylinder. Used a ramdom users u tube video to instruct me first.

This was a great addition to my recent ILife purchase. Although the mop pads can be washed I like to have additional items on hand. The items fit securely which I have found wasn’t the case with other vendors.

Say no more we love it how the works for our blue air.

Nice Generic Filters! Works great on my Air Purifiers!!

A+