Free signed next day delivery on all orders over £250
Try our at-home blood test
Clinic-level accuracy on 38 key markers. Results and recommendations in just 72h.
Blue Signature™ SP3i Medium - Midnight
In stock. Next day delivery available.
Healf Zone members get free next day delivery on all orders.
Product description
- Removes up to 99.97% of airborne particles.
- Seven-stage filtration with advanced odour removal.
- Smart sensors automatically adjust to changing air quality.
- Suitable for rooms up to 209m².
- Connects to the Blueair app for smart control and monitoring.
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
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
Please refer to the user manual for proper operation, cleaning, and maintenance of the unit.
You may also like
Biotin
Omega-3 with CoQ10
3500 Filter Replacement – One Year Combo Pack
Biotin
Omega-3 with CoQ10
Shop by collection
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.
Do you have resources on how to enhance wellbeing?
The Healf Source offers detailed insights into different aspects of wellbeing, as well as guidance, research, recipes, and more to help you invest in your personal wellbeing journey. You can also subscribe to our weekly newsletters for the latest updates at Healf and in the wellbeing industry. Subscribe via the sign-up block at the bottom of this page.
How can I find out more about the ingredients in a product?
We love people who check ingredients as carefully as we do, so you'll find detailed information about the ingredients used on every product page (where applicable). If you see something you'd like to flag with us or have additional questions, please don't hesitate to get in touch—we'd love to hear from you.
Healf Curation Process™
Every product undergoes our rigorous Healf Curation Process, ensuring you are always getting the best when it comes to your wellbeing.
