Blueair Genuine HEPASilent Replacement Filter for Blue Pure 511 Air Purifier – Removes 99.97 Percent of Pollen, Dust, Pet Dander, Mould, Bacteria and Viruses Activated Carbon Reduces VOCs

It is efficient. It does what it says and the air is cleaner

Good price , great produce

As described. It works extremely well. That said, I bought the same product prior for my daughter, when she complained about dust in her student accommodation, during her 1st year at University. I therefore bought the same for my own home. It does get rid of pet and smoke smells. Equally Amazon had the best sale price.

Great price! Thank you. Great product!! It’s all working much better with new filters!..

Original filter pricey,but worth paying for,makes item asnew

I didn’t think the air filter was doing much until I came to change it - it was absolutely caked in dust which begs the question where would the dust have otherwise gone? Totally worth the money!!!

Yes haven't used it yet but I know it will do the job have another month b4 it's due to be replaced the old 1

SERVICE WAS FIRST CLASS,WE HAVE A BLUE PURE 511 PURIFIER AND IT WORKS BETTER WITH RIGHT FILTER WE FIND GOOD AIR QUALITY AND GOOD FOR NOISE,THANK YOU

Perfect

The size that was mentioned in the description is not correct. At all. This filter is smaller by 25% from original size