Blueair Blue Pure 311 Car Replacement Filter Particles and Activated Carbon Fits Blue Pure 311 Car Air Purifier

Easy to replace

I used this in our blue air pure 311 auto. This original One lasts alot longer and provides better filtration than the aftermarket thinner badly fitting ones. I would highly recommend just sticking with these ones and you will not have any issues!

Easy replacement and works great

I tried to save a little money and buy an off-brand filter…it didn’t fit properly and was a piece of crap. These blue air brand filters are amazing as well as the machines themselves! Had the air purifier for about 3 years. I replace the filter every 6 months and this is the difference when I go to replace it.

Not bad