Your Blueair Signature Medium has spent the past year quietly catching things you’d rather not breathe in. The filter has been working hard the whole time, and once it’s full it can’t do its job as well. A fresh one puts that right.
This is the genuine Blueair filter made for the Signature Medium. It combines particle filtration with a carbon layer, so it catches airborne particles such as pollen and pet dander and takes the edge off everyday household smells too. It’s the same filter your purifier arrived with, so it fits properly and performs the way Blueair intended.
When should I change it?
You don’t need to keep track. The Blueair app monitors filter life and lets you know when a change is due. Most homes replace it around every 12 months, and a little sooner if you have pets or often run the purifier on a higher setting.
Not sure it’s the right one?
Scan the NFC tag under the pre-filter, next to the sensors, with your phone. It takes you straight to the correct filter for your model.
Easy to fit
It takes about a minute and you won’t need any tools.
Never run out
Subscribe and we’ll send a fresh filter when it’s due, with 5% off your first order.
Why buy from Breathing Space
Established 1999, we bring over 25 years of specialist expertise. We have a 4.9 rating on Trustpilot from more than 2,200 reviews, and delivery is free on UK orders over £50.
Key points
- Genuine Blueair replacement for the Signature Medium (SP3i)
- Particle and carbon filtration in one filter
- Replace around every 12 months, and the app reminds you
- Fits in about a minute with no tools
