Blueair F5MAX 511i Max Replacement Filter

Our air purifier in the laundry room near the kitty litter pan is kicking up the air purification to a level I didn’t know existed. When you see some dust, you think ... it’s got to be filtering some out, but once I cleaned the filter and saw the extent of dust and mini debris on the cloth outer shell, I was very surprised and impressed.

Even though we have an overhead vent above our stove I often stink up the house when I'm cooking. The Blue Pure unit does a good job removing the smell. It's easy to tell with the color coded air quality indicator. The app is nice for keeping track of the filter 'health'. We still have quite a while before a new filter will be needed. I was concerned about having to replace it too often but that doesn't look like an issue.

These fit perfectly, I wouldn't use the off-brands after reading reviews about the odd shaping. I also could tell a big difference once using the replacement filter and running the system overnight. It really helps in removing nuisance odors like smoke from a different unit in my building!

Nice filters and easy to change. The app is very intuitive.

Love this product. It works. Air is clean and fresh even after cooking.

The max particle + carbon filter does an amazing job cleaning the air in multiple rooms. Since purchasing our Blue Air Purifier, I haven't head any head congestion or sinus infections. I did purchase the smoke filter and allergen filter thinking I would need more support during high allergy seasons and summer fires but so far the Max Particle + Carbon filter have kept unwanted particles under control. Couldn't be happier with this investment.

Having the filters on a subscription plan keeps it simple for me. This way I don't miss changing the filter in a timely manner.

Exactly what I needed for this device. Fit perfectly and the filter is working properly.

My husband was having trouble breathing due to COPD. This has helped him tremendously. When I replaced the filter I couldn't believe how dirty it was and will continue to use.