blue signature sp3i medium midnight

Blue Signature™ SP3i Medium - Midnight

£269.00

In stock. Due to the Bank Holiday, Next Day orders may be delayed.

Product description

Key Benefits

The Blue Signature™ SP3i Medium is a premium smart air purifier that combines powerful air purification with an elegant, home-friendly design. Its seven-stage filtration system captures up to 99.97% of airborne particles as small as 0.1 microns, while OdourFence Technology helps neutralise unwanted household odours for a fresher indoor environment.

SurroundAir™ technology distributes purified air through omni-directional airflow to provide rapid, effective coverage in rooms up to 209m². AirSense™ smart mode continuously monitors indoor air quality and automatically adjusts purification levels to maintain optimal performance throughout the day.

A motion-activated touchscreen display, RealTrack Technology® for accurate filter life monitoring and seamless connectivity with the Blueair app make controlling your indoor air simple. Complete with a Midnight pre-filter and a Particle & Carbon filter, the Blue Signature™ SP3i Medium also doubles as a practical tabletop, blending effortlessly into modern living spaces.

Technical Specifications:

Filter Type: Particle & Carbon

Dimensions (H × W × D): 49 × 30 × 30 cm

Product Weight: 4.3 kg

Energy Consumption: 3.5–42W

Sound Level: 23–55 dB

Air Outlet: Side

Recommended Room Size: 46 m² (4.8 ACH)

Air Changes per Hour (ACH): 4.8

Clean Air Delivery Rate (CADR): Pollen 561 m³/h; Dust 525 m³/h; Smoke 545 m³/h

Recommended Filter Change: Every 9–12 Months

Number of Filters: 1

Speed Control Options: 1, 2, 3, 4, Auto and Night

Why Blueair is Healf

Blue Signature™ SP3i Medium combines HEPASilent™ filtration with OdourFence™ Technology to address both airborne particles and household odours in a single system. HEPASilent™ filtration captures at least 99.97% of airborne pollutants as small as 0.1 microns, including fine dust, pollen and other microscopic particles, while OdourFence™ Technology captures and breaks down common odour-causing gases instead of simply masking them. This dual-filtration approach helps you maintain cleaner, fresher indoor air every day.

Blueair was founded in 1996 in Stockholm by Bengt Rittri, driven by a simple goal: to ensure his children could breathe the same clean air indoors as they did in the Swedish archipelago. With a deep commitment to environmental responsibility, Rittri built Blueair into a global brand focused on healthier indoor living. The brand develops high-performance air purifiers using precision-engineered filtration technologies designed to capture airborne particles, allergens, and pollutants efficiently and reliably. Each system reflects a science-led approach, combining smart design with carefully tested components to deliver consistent air quality. Through this commitment to clean, effective solutions, Blueair helps create healthier homes so you can breathe easier every day.

With our Healf Curation Process, we do the work for you. Shop with confidence knowing that every item has been tried, tested, and curated for you.

Learn more about each step—Brand Discovery, Expert Validation, and Community Testing— here.

Suggested use

Indoor Use, Suitable for rooms up to 209m²

Please refer to the user manual for proper operation, cleaning, and maintenance of the unit.

Recommended pairing



Blueair

Blue Signature™ SP3i Medium - Midnight

£269.00](/content/products/blue-signature-sp3i-medium-midnight/index.html)

Frequently asked questions

How do we curate our products?

Every product undergoes our Healf Curation Process. With it, you can shop confidently knowing that every item has been tried and tested before it reaches you. Our Healf Curation Process includes three key steps: Brand Discovery, Expert Validation, and Community Testing. Through these, we assess quality, ingredients, effectiveness, and more, ensuring that every product empowers your wellbeing.