Not every room needs a big machine, but every room deserves clean air. That is the thinking behind the newest addition to the Blue Signature family. The Blue Signature Small is a compact small air purifier that brings the same seven-stage filtration, smart sensing and design-led looks as its larger siblings, now sized for bedrooms, nurseries, home offices and smaller living spaces.

If you have been searching for a small air purifier that does not compromise on performance, here is everything you need to know about the launch.

A small air purifier without the compromise

The Blue Signature Small is one of the most compact smart purifiers Blueair has made, yet it does not hold back on power. It rapidly cleans a 23 m² room in just 12.5 minutes and refreshes the air in spaces up to 110 m² every hour. For a unit that stands around 35 cm tall and weighs only 2.6 kg, that is a serious amount of clean air.

At roughly 24 cm wide and deep, this small air purifier slips neatly onto a bedside table, a desk or a shelf without dominating the room. Small enough to move between spaces, powerful enough to keep up with them.

What makes this small air purifier different

• Seven stages of superior filtration: HEPASilent technology captures 99.97% of airborne particles down to 0.1 microns, including dust, pollen, pet dander, bacteria and mould allergens.
• 10x more odour removal: OdourFence technology captures common odour gases and breaks them down, so cooking smells, pet odours and stale air are dealt with at the source rather than masked.
• Smart VOC sensing: an onboard sensor continuously detects airborne gases and chemical pollutants you cannot see, then adjusts purification in real time to match the air in the room.
• Dynamic adaptive display: the motion-activated touchscreen shows your air quality at a glance and responds to your preferences, lighting up when you approach and settling down when you do not.
• Double the filter lifetime: a patent-pending filter design means a single filter lasts up to a year, cutting down on replacements, waste and running costs.
• Whisper-quiet operation: it runs quieter than a whisper at 23 dB on the lowest setting and no louder than 55 dB at full speed, so it earns its place in a bedroom or nursery.
• Genuinely low energy use: drawing a maximum of just 20 W, this small air purifier can run around the clock without a noticeable dent in your electricity bill.

Filtration you can feel and smell

The Blue Signature Small pairs Blueair's signature HEPASilent filtration with smart odour control. HEPASilent combines electrostatic and mechanical filtration to capture at least 99.97% of tiny airborne pollutants, right down to fine particles, dust mite allergens, pollen, bacteria, viruses and mould allergens.

OdourFence then goes to work on the smells. Rather than covering odours with fragrance, it captures the gases responsible and breaks them down. The result is air that feels crisp and clean, not perfumed.

Clean air delivery rates back this up, with the unit rated at 304 m³/h for pollen, 283 m³/h for dust and 271 m³/h for smoke. Impressive numbers for a small air purifier of this size.

Smart control in the Blueair app

The Blue Signature Small connects to the newly upgraded Blueair app over Wi-Fi, putting full control in your pocket.

• Effortless air control: choose a fan speed, hand over to auto or night mode, and keep settings safe with display lock.
• Schedules that fit your life: set preferred purification times so you wake up to fresh air, keep things clean during peak hours and save energy while you are out.
• Accurate filter tracking: a RealTrack algorithm calculates remaining filter life based on fan speed, usage and pollution levels, then alerts you when it is time to reorder.

With speed options spanning 1, 2, 3, 4, Auto, Night and Eco, you can dial the purifier in for any room and any time of day.

A small air purifier designed to fit your space

The Blue Signature Small is built to look at home, not hidden away. It doubles as a tabletop, and you can personalise it with curated pre-filter colours and exclusive accessories to suit your interior. Launching
in a striking Midnight finish, it is designed to be seen as much as used. For a small air purifier, that is a rare thing.

Backed by real results

Blueair put the Blue Signature range in front of everyday users, and the feedback speaks for itself. In consumer testing, 95% of people felt it contributed to a healthier living environment and 89% preferred it over any other air purifier they had used.

As a Certified B Corp, Blueair also builds these products to high social and environmental standards, so cleaner air at home comes with a lighter footprint on the planet.

Available now

The Blue Signature Small is available with free next-day delivery and a 30-day home trial so you can feel the difference for yourself. If it is not quite right, sending it back is simple.

Clean air should not depend on the size of your room. With the right small air purifier, it does not have to.