Review on Smilyan 3 Pack Pure 411 Replacement Filter for Blueair Blue Pure 411 411+ and Mini Air Purifier with Activated Carbon Filters by Shakira Anderson

When I compared the manufacturer's original BlueAir Pure 411 filter, this filter is EXACTLY THE SAME, the only difference being that it's branded. it is EXACTLY like this one except for the brand label. People who claim it doesn't fit probably had an issue with the "internal carbon filter" not stretching properly. I have over 5 BlueAir Pure 411 air purifiers and am so glad the general purpose filter is available at such a great price. If you have experience with changing filters you will understand what I am talking about and if not it is probably time to start saving filters. definitely fits the 411 Pure, just put it on and you can no longer see the filter with the attached pre-filter!