ComfortPure™️ 3-in-1 T20i Replacement Filter

Cleaner air, from particles to odors

Multi-layer filtration captures larger debris & fine airborne particles while activated carbon tackles household odors.

Know when it’s time for a fresh wick

Your humidifier & the Blueair app alert you when the wick needs changing.

4.3

Rated 4.3 out of 5 stars

4.3 Stars (11 Reviews)

ComfortPure™️ 3-in-1 T20i Replacement Filter

Keep your ComfortPure™ 3-in-1 performing at its best with particle and carbon filtration designed for cleaner, fresher everyday air.

Designed for

ComfortPure™ 3-in-1 T20i

Great for

Dust, pollen, pet dander

Filter Subscription

1 Replacement Filter
Delivered Every 9 Months
Pay when we send it
Save 15% on recurring filter replacements

Most Popular

Free & fast shipping
30 day home trial
Free extended warranty

Why you’ll love it

Smart filtration that helps keep your 3-in-1 cleaning effectively with less guesswork.

Captures dust, pollen & pet dander
Helps filter PM2.5 and other fine particles
Helps reduce light cooking and smoke odors
Lasts up to 9 months
Tracks filter life based on actual use
Easy to remove and replace

Up to 9 months filter lifetime
Captures everyday particles
App replacement alerts
Quick & easy filter changes

Features & Technologies

Captures PM2.5, pollen, dust mite matter, & dander allergens.
Activated carbon traps light household odors
RealTrack™ Technology calculates remaining filter life based on actual use.
Device + app status lets you know when it’s time for a replacement.
Up to 9-month filter life means fewer routine filter changes.

Cleaner air, from particles to odors

Multi-layer filtration captures larger debris & fine airborne particles while activated carbon tackles household odors.

Know when it’s time for a fresh wick

Your humidifier & the Blueair app alert you when the wick needs changing.

Smart filtration,  you can trust

Up to 9 months filter lifetime

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.

Pre-filter

Captures larger particles like hair, dust & dander

Main Filter

Captures airborne particles including, PM 2.5, pollen, dust mite matter allergen & pet dander allergen

Activated Carbon

Traps light household odors from smoke, cooking odors and more

FAQ

What model air purifier is this filter compatible with?

These filters are only compatible with the ComfortPure™ 3-in-1 T20i air purifier

How often should I replace my Blueair air purifier filter?

How do I know when it’s time to change my filter?

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