Fresh air you can feel and smell

7 stages of filtration capture tiny airborne pollutants while OdorFence™ Technology helps break down common odors.

Easy to replace. Easy to remember.

Simple filter changes and RealTrack™ monitoring take the guesswork out of keeping your purifier performing its best.

3.0

Rated 3.0 out of 5 stars

3.0 Stars (1 Review)

Blue Signature™ Mini Replacement Filter

Keep Blue Signature™ performing at its best with long-lasting 7-stage filtration designed to tackle particles, allergens & household odors.

Designed for

Blue Signature™ Mini

Great for

Everyday clean air, allergy season, smoky days

Filter Subscription

Why you’ll love it

Long-lasting filtration that keeps clean air simple and takes the guesswork out of replacement.

Features & Technologies

Fresh air you can feel and smell

7 stages of filtration capture tiny airborne pollutants while OdorFence™ Technology helps break down common odors.

Easy to replace. Easy to remember.

Simple filter changes and RealTrack™ monitoring take the guesswork out of keeping your purifier performing its best.

How to find your model

Unlock your phone & tap & hold it to the sticker on the cage of your device. It automatically direct you to the compatible filter.
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.

FAQ

How often do I need to change the filter?

Your filter will last up to 1 year. When it's time to replace the filter, the filter replacement LED on the interface will turn red to remind you.