Cleaner air starts with a fresh filter

Works with HEPASilent™ Technology to remove up to 99.97% of tiny airborne particles while carbon filtration.

Simple upkeep, every six months

A filter replacement indicator lets you know when it’s time for a fresh filter, typically after about six months of use.

4.4

Rated 4.4 out of 5 stars

4.4 Stars (99 Reviews)

Blue Pure 211+ Series Filter

Smokeblock

Filter Subscription

1 Replacement Filter
Delivered Every 6 Months
Pay when we send it
Save 15% on recurring filter replacements

Select Filter Type

Most Popular

Free & fast shipping
30 day home trial
Free extended warranty

Features & Technologies

Particle + Carbon filtration tackles everyday particles and light household odors.
Main filter captures PM2.5, pollen, dust mite matter and pet dander allergens.
Activated carbon traps light odors from smoke, cooking and more.
6-month replacement cycle keeps routine maintenance straightforward.
Filter replacement indicator lets you know when it’s time for a fresh filter.
Easy replacement design makes routine filter changes simple.

Cleaner air starts with a fresh filter

Works with HEPASilent™ Technology to remove up to 99.97% of tiny airborne particles while carbon filtration.

Simple upkeep, every six months

A filter replacement indicator lets you know when it’s time for a fresh filter, typically after about six months of use.

Smart filtration, you can trust

Is this the right filter for you?

Find the Blueair model name on the label inside your air purifier.
Accurate filter lifetime tracking

Blueair’s proprietary RealTrack algorithm accurately calculates the remaining filter lifetime based on fan speed, usage time and pollution levels.
Subscribe & Save 15%

Dirty filters clean the air less efficiently. Sign up for a filter subscription and get fresh filters delivered right when you need them.

Main filter

The Particle + Carbon filter provides protection against odors, chemicals, gases and 99.97% of airborne pollen, dust and germs.

Extra Activated carbon

The Particle + Carbon filter provides protection against odors, chemicals, gases and 99.97% of airborne pollen, dust and germs.

FAQ

What Blueair air purifiers are compatible with this filter?

This filter is compatible with the Blue Pure 211 & Blue Pure 211+ air purifiers.

How do I reset my filter replacement indicator (red light) on my Blue Pure air purifier?

A red filter replacement indicator appears on the air purifier when it is time to change filter, after about 6 months of operation.

After you replace your filter, press the center button down to reset the filter light indicator until the red light disappears. It usually takes 7-10 seconds and may take up to 30 seconds depending on the model.

¹ Tested on PM 2.5 up to 90 mins

² Based on ELISA deactivation testing of Pollen (Cry J1), Pet Dander (Fel d1, Can F1), Dust Mite Matter (Der f1) on the filter media in 60 minutes.

³ Compared to standard in-unit filter. Based on removal testing of particles 0.4-0.7 μm in 60min in a 30m3 room. Performance may vary. Odors: Tested on benzene, toluene, nitrogen oxide, sulfur dioxide in 30 min.

⁵ AllergenBlock refers to inanimate allergens pollen, dust and pet dander

Your cart

Blue Pure 211+ Series Smokeblock Filter

Is this the right filter for you?

Accurate filter lifetime tracking

Subscribe & Save 15%

Fresh updates
for fresher air