7 stages of filtration capture tiny airborne pollutants while OdorFence™ Technology helps break down common odors.
Simple filter changes and RealTrack™ monitoring take the guesswork out of keeping your purifier performing its best.
Blue Signature™ Medium Replacement Filter
Keep Blue Signature™ performing at its best with long-lasting 7-stage filtration designed to tackle particles, allergens & household odors.
Fast & free shipping
30-day returns
Extended warrantyWhy you’ll love it
Long-lasting filtration that keeps clean air simple and takes the guesswork out of replacement.
- Helps capture dust, pollen & pet dander
- Tackles everyday household odors
- Lasts longer for fewer filter changes
- Tracks filter life based on how you actually use your purifier
- Alerts you when it’s time for a replacement
- Designed for a quick, hassle-free swap
Up to 1-year
filter lifetime 
Accurate filter lifetime tracking 
App replacement alerts 
Quick & easy filter
changes
Features & Technologies
- HEPASilent™ Technology captures 99.97% of airborne particles down to 0.1 microns.
- OdorFence™ Technology captures and breaks down common odor gases.
- 7-stage filtration tackles particles, allergens and odors.
- RealTrack™ Technology calculates remaining filter life based on fan speed, usage and pollution levels.
- Replacement alerts tell you when it’s time for a fresh filter.
- Durable filter design means fewer replacements.
- Easy replacement keeps routine maintenance simple.
Product Notes
*Blueair 3-in-1 T10i in Boosted purification mode tested on CADR (AHAM AC-1) vs Dyson & Shark 3-in-1 air purifiers at max fan speeds.
¹Tested on PM2.5 up to 90 minutes.
²Tested on bacteria (S. aureus, K. pneumoniae, P. aeruginosa), virus (MS2) and mold allergen (A.niger) with a minimum reduction rate of 99.8% in 60 min. Blueair does not claim to prevent transmission of airborne illnesses.
³Comparing CADR performance of Blueair models with mechanical and electrostatic filtration vs same models with only H13 HEPA mechanical filtration.
⁴Noise refers to the dB(A) difference in acoustic power.Cools through fan, not air conditioning
7 stages of filtration capture tiny airborne pollutants while OdorFence™ Technology helps break down common odors.
Simple filter changes and RealTrack™ monitoring take the guesswork out of keeping your purifier performing its best.
Smart filtration, you can trust
Unlock your phone & tap & hold it to the sticker on the cage of your device. It automatically direct you to the compatible filter.
Blueair’s proprietary RealTrack algorithm accurately calculates the remaining filter lifetime based on fan speed, usage time and pollution levels.
Dirty filters clean the air less efficiently. Sign up for a filter subscription & get fresh filters delivered right when you need them.
7 stages of superior filtration and smart VOC sensing for 10x³ more odor removal
Smart VOC sensing continuously detects airborne gases and chemical pollutants in real time. HEPASilent filtration technology captures at least 99.97%² of tiny airborne pollutants down to 0.1 microns, such as fine particles, dust mite allergen, pollen, bacteria, virus and mold allergen⁴ OdorFence captures common odor gases and breaks them down. It’s deep, effortless clean air you can feel, and smell, every day.
FAQ
How often do I need to change the filter?
Your filter will last up to 1 year thanks to our unique patent-pending design & proprietary RealTrack algorithm that accurately calculates the remaining filter lifetime based on fan speed, usage time and pollution levels.
When it's time to replace the filter, the filter replacement LED on the interface will turn red to remind you. Alternatively, connect to the Blueair app to receive an alert and easily re-order at the touch of a button.
What are the noise levels?
Blue Signature™ operates quieter than a whisper on low at 19 db and is no louder than 54 dB on high fan speed.
What room size is best?
To achieve maximum performance we recommend placing your unit in a room around 498 ft² room so your air purifier can clean the air at the AHAM recommendation of 4 times every 12.5 minutes. The Blue Signature™ will clean up to 2,250 ft² in 1 hour.
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Originally published on Blueair US
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