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Blue Signature™ SP3i Medium - Midnight

€323.82

Delivery within 2 business days

Same working day shipping for orders placed before 12 pm

Local shipping with DHL from our EU warehouse (NL) – no customs fees.

Customer service in English, German, and French

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Product description
Key Benefits
  • 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
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.

The Healf Promise

Rated 4.8 (Excellent) based on 15,100+ reviews on Trustpilot

Dillon Jagatia

A comprehensive approach to wellbeing

Healf has impressed me with its comprehensive approach to wellbeing. Their commitment to natural ingredients and cutting-edge technology is evident. From vitamins and supplements to healthy snacks and cooking essentials, they've curated a diverse range of options to cater to various health needs.

Jesse Hansen-Bartel

Top-tier products

If you're serious about wellbeing, you need Healf. Their products are top-tier and the customer service team has been super attentive!

Mayah

One of the best wellbeing websites I've come across.

Healf is one of the best wellbeing websites I've come across. It's nice to know that they thoroughly check the products they sell so you know you are getting good quality stuff. Highly recommend.

Lydia Free

The best wellbeing website…

The best health and wellbeing website in the UK. The range of products is fantastic, even on hard to reach USA products. I love the subscription service too. I'd be lost without this website.

Alex

Amazing!

Healf isn't just another wellbeing brand. They really get it. The products are fantastic, and the support is always so personal and genuine!

Janet

Great products, service, and customer support

Healf have a great range of wellbeing products not available elsewhere in the UK. They are competitively priced as one-off, but even better if you take up the 'subscription' which is super flexible too. I'd have no hesitation in recommending Healf.

S Jones

I love Healf

It's the only place I get really decent health and wellbeing brands, particularly US brands. I've bought a Pvolve set, lots of Skinny Confidential stuff, Thorne supplements etc., the really great stuff that's impossible to get otherwise.

Dillon Jagatia

A comprehensive approach to wellbeing

Healf has impressed me with its comprehensive approach to wellbeing. Their commitment to natural ingredients and cutting-edge technology is evident. From vitamins and supplements to healthy snacks and cooking essentials, they've curated a diverse range of options to cater to various health needs.

Jesse Hansen-Bartel

Top-tier products

If you're serious about wellbeing, you need Healf. Their products are top-tier and the customer service team has been super attentive!

Mayah

One of the best wellbeing websites I've come across.

Healf is one of the best wellbeing websites I've come across. It's nice to know that they thoroughly check the products they sell so you know you are getting good quality stuff. Highly recommend.

Lydia Free

The best wellbeing website…

The best health and wellbeing website in the UK. The range of products is fantastic, even on hard to reach USA products. I love the subscription service too. I'd be lost without this website.

Alex

Amazing!

Healf isn't just another wellbeing brand. They really get it. The products are fantastic, and the support is always so personal and genuine!

Janet

Great products, service, and customer support

Healf have a great range of wellbeing products not available elsewhere in the UK. They are competitively priced as one-off, but even better if you take up the 'subscription' which is super flexible too. I'd have no hesitation in recommending Healf.

S Jones

I love Healf

It's the only place I get really decent health and wellbeing brands, particularly US brands. I've bought a Pvolve set, lots of Skinny Confidential stuff, Thorne supplements etc., the really great stuff that's impossible to get otherwise.

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.

The Discovery

Our approach keeps us at the forefront of wellbeing. With our global network of health professionals and AI-powered trend analysis, we curate the leading supplements, tools, and tech that pioneer the industry.

Expert Validation

Each product at Healf is carefully examined by a panel of industry specialists—including dieticians, personal trainers, psychologists, and sleep experts—to ensure it meets our high standards for quality, efficacy, and ingredient formulations.

Community Testing

By collaborating with a dedicated group of customers who test and review each product, we ensure that only those truly beneficial to your wellbeing are offered here at Healf.