Blue Signature™ 4.0 Replacement Filter

Name: Blue Signature™ 4.0 Replacement Filter
Brand: Blueair
SKU: 112973 - Filter Subscription
Price: 99.99 GBP
Availability: OutOfStock

Compatible with Blue Signature™ Air Purifier

Blue Signature™ Replacement Filter

This filter is only compatible with the Blue Signature™

Designed for easy replacements, ensuring hassle-free maintenance for continuous clean air
Crafted with durable materials for a long-lasting filter
Effectively captures allergens like dust, pollen, and pet dander

Alerts when you need a new filter
RealTrack filter monitoring
Double* the filter lifetime

Smart filtration, you can trust

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 & get fresh filters delivered right when you need them.

7 stages of filtration,
10x more odour removal

HEPASilent filtration technology captures at least 99.97%² of tiny airborne pollutants down to 0.1 microns while OdorFence Technology captures common odour gases and breaks them down. It’s deep, effortless clean air you can feel, and smell, every day.

Fast & free shipping
30 day home trial
Authenticity guaranteed

Technical Specifications

² Tested on PM2.5 up to 90 minutes.

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