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BLUEAIR Signature SP4i Air Purifier for Large Rooms up to 3,385 Ft² – Home Use
$322.49
Tax included
Experience the ultimate in clean air with Blueair's powerful air purifier, designed for large spaces up to 705 sq ft, delivering fresh air in just 12.5 minutes and purifying 3,385 sq ft every hour. Featuring advanced 7-stage HEPASilent filtration, it captures 99.97% of airborne particles as tiny as 0.1 microns and neutralizes odors and VOCs with OdorFence Technology. Whisper-quiet at just 23 dB, it operates seamlessly without disturbing your sleep or focus. Stay effortlessly in control via the Blueair app, adjusting fan speed, schedules, and settings remotely, while Auto Mode smartly adapts to your indoor air quality. A built-in air quality indicator uses five distinct colors to keep you informed in real time. Its sleek Scandinavian design doubles as a stylish side table, with customizable pre-filters to perfectly complement your décor. Transform your home or office with fresh, healthy air and elegant design.
✨Free delivery✨
BLUEAIR Air Purifiers for Home Large Room up to 3,385 Ft², Signature SP4i
Experience premium air purification designed to cover large spaces up to 3,385 square feet with the BLUEAIR Signature SP4i. Engineered to efficiently clean the air in your home, this sleek and powerful unit offers whisper-quiet operation, smart controls, and customizable styling options to fit your home decor. Enjoy cleaner, fresher air with advanced filtration and real-time air quality monitoring.
Engineered to deliver outstanding performance while impressing with its modern design. This air purifier seamlessly combines form and function for use in any stylish home environment.
Featuring a meticulous 7-stage filtration system that removes odors and pollutants up to 10 times more effectively. Breathe cleaner and fresher air every day with this advanced technology.
Equipped with a dynamic display that provides instant feedback on air quality and device status. Stay informed effortlessly with the intuitive interface.
Take control from anywhere using smart app connectivity. Adjust settings, monitor air quality, and receive notifications directly from your smartphone.
Customize your air purifier with interchangeable bases and filters to perfectly match your home style. Style it your way without compromising on functionality.
Breathe the difference with Blueair’s state-of-the-art purification technology. Enjoy a healthier home environment that removes particles, allergens, and odors.
The Blueair app enhances your experience with easy setup and access to smart features. Monitor air quality in real time and receive reminders to keep your air purifier running efficiently.
 Blue Signature |  Pre-filters |  Chrome Ring Base |  Wood Leg Base |  Particle & Carbon Filter | |
|---|---|---|---|---|---|
| Price | $337.48 | — | $99.99 | $79.99 | $99.99 |
| Compatible with Blue Signature | ✔ | ✔ | ✔ | ✔ | ✔ |
| Comes with unit | ✔ | ✘ | ✘ | ✘ | ✔ |
| Filter lifetime tracking | ✔ | ✘ | ✘ | ✘ | ✔ |
| Filter Lifetime | Up to 1 year | – | – | – | Up to 1 year |
| Machine Washable | ✘ | ✔ | ✘ | ✘ | ✘ |
Common Questions
What room size is best?
To achieve maximum performance, place your unit in a room around 705 ft² so it can clear the air at the AHAM recommendation of 4 times every 12.5 minutes. The Blue Signature can purify up to 3,385 ft² in just 1 hour, making it ideal for large spaces.
What are the noise levels?
Operating quieter than a whisper on low (23 dB), the Blue Signature maintains a peaceful environment. Even on high fan speed, noise levels will not exceed 55 dB, ensuring silent operation all day long.
How often do I need to change the filter?
Thanks to Blueair's unique patent-pending design and proprietary RealTrack algorithm, your filter will last up to 1 year. The algorithm calculates remaining filter life by analyzing fan speed, usage time, and pollution levels for maximum efficiency.
B08KTH125D
500 Items
Specific References
Glad I went for it
Put this in our living room and noticed the air feels lighter and less stuffy, and I’m already planning to grab a second one for the bedroom.
So glad I got it
Exactly what I was hoping for, very happy with this purchase.
Happy every time I walk in
Every time I step through the door now, it just feels instantly more relaxing and pleasant in here.
Instant difference
First night I plugged this in was during a big dinner with a bunch of friends over, and within an hour the usual lingering cooking smell just… wasn’t there. Woke up the next morning and the whole living room felt lighter somehow, like we’d opened all the windows overnight.
Experience the ultimate in clean air with Blueair's powerful air purifier, designed for large spaces up to 705 sq ft, delivering fresh air in just 12.5 minutes and purifying 3,385 sq ft every hour. Featuring advanced 7-stage HEPASilent filtration, it captures 99.97% of airborne particles as tiny as 0.1 microns and neutralizes odors and VOCs with OdorFence Technology. Whisper-quiet at just 23 dB, it operates seamlessly without disturbing your sleep or focus. Stay effortlessly in control via the Blueair app, adjusting fan speed, schedules, and settings remotely, while Auto Mode smartly adapts to your indoor air quality. A built-in air quality indicator uses five distinct colors to keep you informed in real time. Its sleek Scandinavian design doubles as a stylish side table, with customizable pre-filters to perfectly complement your décor. Transform your home or office with fresh, healthy air and elegant design.
✨Free delivery✨