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Blueair Blue Signature SP4i Air Purifier

From: $699.00
  • Suitable for bedrooms up to 67 m2
  • 7 stages of filtration removes 99.97% of airborne particles
  • 10x more odor removal with OdorFence Technology
  • Dynamic display that auto-adapts to enhance your air
  • Double the filter lifetime thanks to our patent-pending filter design
  • Smart features in the highly rated, newly improved Blueair app
  • Operates on low at 23dB, and is never louder than 55dB
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Blueair Blue Signature Air Purifier

Blueair Blue Signature Air Purifier

The most powerful, compact air purifier you can get

Meet Blueair Blue Signature™ - the next generation of clean air innovation, Engineered to perform, designed to Impress. This powerful air purifier combines advanced 7-stage filtration with patented HEPASilent™ and OdorFence™ technologies to remove 99.97% of airborne particles down to 0.1 microns.

Using BIO-based enzymes and minerals, it breaks down gases and odors at the molecular level—delivering up to 10X* better odor removal than standard carbon filters. Engineered with Surround Boost™ airflow, Blue Signature™ doubles purification efficiency while maintaining a compact, Swedish-inspired design that also functions as a stylish side table.

A motion-activated dot matrix display comes to life as you approach, providing glanceable air quality insights with real-time animations. Personalize your experience with multiple optional accessories.

Easily control settings, track air quality trends, and schedule cleanings via the connected app. Night Mode and Auto Mode ensure clean air without the noise or hassle, while the quick-swap filter and easy-to-clean surfaces make maintenance a breeze. 3-year limited warranty. Designed for clean air. Built for everyday living.

  • Rapidly cleans 67 m² in 12.5 minutes
  • 7 stages of filtration removes 99.97%² of airborne particles
  • 10x³ more odor removal with OdorFence Technology
  • Dynamic display that auto-adapts to enhance your air
  • Double the filter lifetime thanks to our patent-pending filter design
  • Smart features in the highly rated, newly improved Blueair app
  • Device comes with 1 pre-filter in Nordic Fog and 1 Particle & Carbon filter
Blueair Blue Signature Air Purifier
Motion activated touchscreen display

Motion activated touchscreen display

Accurate filter lifetime tracking

Accurate filter lifetime tracking

Doubles as a table-top

Doubles as a table-top

Why choose Blue Signature?™

Sleep Better, Live Better

The Blueair Blue Signature delivers top-tier air quality with advanced HEPASilent filtration, smart connectivity, odour-breaking technology and quiet, energy-efficient performance.

Designed for large living spaces and everyday use, it's an excellent choice for healthier indoor environments with less dust, smoke, allergens and smells - while also integrating seamlessly into your home decor and routine.

Who This Is Best For?

This air purifier is ideal for Australians seeking powerful large-space air cleaning, allergy and smoke reduction, and odour control without sacrificing quiet operation or smart features.

It's well suited for large houses, open-plan living areas, family rooms, high-traffic indoor spaces, and pet-friendly homes looking to greatly improve indoor air quality.

Sleep Better, Live Better
Accurately track

Accurately track

Accurately track

APP CONTROL & VOICE ASSISTANT

Customize settings, schedule cleanings, track indoor and outdoor air quality trends over time, and get filter replacement alerts—all from your phone. Compatible with Amazon Alexa and Google Home.

AUTO FRESH MODE

Advanced laser sensors monitor air quality in real time and automatically adjust fan speed to keep your air fresh all day. Learns your routines and adapts to your needs over time.

A little maintenance, a lot of comfort

A little maintenance, a lot of comfort

EASY MAINTENANCE

Built for everyday convenience with a quick-swap, patent-pending filter that's easy to replace—no tools, no hassle. Double the filter life thanks to our innovative design, with RealTrack technology that monitors actual usage and alerts you when it's time to replace.

DOUBLES AS TABLE

Sleek, Swedish-inspired design with a flat top surface that functions as a side table. Lightweight and compact, with optional accessories to personalize and complement any home decor.

A little maintenance, a lot of comfort
Breathe the Difference
Superior Filtration

Superior Filtration

Superior Filtration

7-STAGE HEPASILENT FILTRATION

Dual filtration captures 99.97% of airborne particles down to 0.1 microns—including smoke, dust, and allergens—using mechanical and electrostatic technology. Surround Boost airflow and the OdorFence filter enhance whole-room purification by breaking down odors, gases, and VOCs with low noise and energy use.5

ODORS BLOCKED

OdorFence Technology uses bio-based enzymes and minerals to break down odors and gas molecules, removing up to 10x more odor.

ENERGY-EFFICIENT PERFORMANCE

Engineered to deliver powerful purification with minimal energy use, operating quietly and efficiently to help reduce electricity consumption without compromising performance.

Smartest Display

Smartest Display

INTERACTIVE DISPLAY

Premium dot matrix screen with top-facing controls detects motion and wakes automatically as you approach. Playful animations reflect active settings—like a dancing moon in Night Mode—making air quality more intuitive and engaging.

GLANCEABLE AQI

Discreetly built into the air outlet, the front air quality indicator displays real-time pollution levels with 5 easy-to-read colors—from excellent (blue) to poor (red)—plus a subtle animation when it's actively cleaning.

Smartest Display

Smart control in the highly rated & newly upgraded Blueair app

Effortlessly take control of your air

Effortlessly take control of your air

Select a fan speed, let auto or night mode take over & keep settings secure with display lock.

Smart filter lifetime tracking

Smart filter lifetime tracking

Tracks the filter lifetime based on pollutant levels and alerts you when it's time to replace your filter.

Customize schedules to fit your lifestyle

Customize schedules to fit your lifestyle

Set your preferred times for enhanced air purification, so you can wake up to fresh air, keep your home clean during peak hours, and save energy when you're away.

How to use Blue Signature™?

Technical Specifications

Dimensions(HxWxD) 43.7 cm x 39.3 cm x 36.6 cm
Product Weight 6 kg
Energy Consumption 3.5-42 W
Sound level 23-55 dB
Air outlet Side
Recommended room size 67 m2
Clean air delivery rate (CADR) Pollen 450 cfm
Dust 434 cfm
Smoke 455 cfm
Number of filters 1
Speed control options 1 - 2 - 3 - 4 - Auto - Night
Wi-Fi connectivity for remote control Yes
On/ off timer Yes, via Blueair App
Integrated air sensors Yes

About Blueair

Blueair Logo

Blueair was founded on the firm belief that freedom to breathe is a basic right. Over two decades ago, Blueair's Swedish founder set out to make the world's best air purifier. By bringing together a team of talented designers and filtration experts who shared his passion for sustainability, quality and design, the Blueair air purifier was born.

Today, Blueair's award-winning air purifiers which combine superior performance and low noise with timeless Scandinavian design, improve the health and well-being of people in over 60 countries around the world. Since 2016, Blueair is a proud member of the Unilever family of brands.

Blueair Logo

Manufacturer's Specifications

Coverage Area Up to 67 m2
Power Mains Powered (230-240V, 50Hz)
Filter Replacement Frequency 6 - 12 Months
Energy Consumption 3.5-42 W
Clean Air Delivery Rate Pollen 450 cfm, Dust 434 cfm, Smoke 455 cfm
HEPA Filter HEPASilent Filter Technology
Weight 6 kg
Noise Level 23-55 dB
Carbon Filter Particle & Carbon Filter
Timer and Speed Controls 1 - 2 - 3 - 4 - Auto - Night
Dimensions 43.7 cm x 39.3 cm x 36.6 cm
Inclusions Device comes with 1x Blueair Blue Signature Air Purifier, 1x pre-filter in Nordic Fog and 1x Particle & Carbon Filter
Manufacturer's Warranty 3 years
Other Air Purifiers Air Purifiers
Manufacturer Blueair
Category Air Quality

How to Order - More Information

Sleep Solutions is registered as a provider with the NDIS (National Disability Insurance Scheme)

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