The Blueair Signature SP4i 113981 air purifier delivers high-performance cleaning for medium-to-large rooms using advanced 7-stage filtration technology. The HEPASilent tech and OdorFence system captures 99.97% of pollutants while effectively reducing odours through its bio-formulation process. Features include 360-degree Surround Boost airflow distribution, intuitive dynamic display with air quality indicators, and app control functionality. The light grey unit measures 393mm wide and operates quietly while being 40% more compact than competitors and using 53% less plastic. Ideal for living rooms and large bedrooms requiring comprehensive air purification.
The Blueair Signature SP4i 113981 air purifier delivers high-performance cleaning for medium-to-large rooms using advanced 7-stage filtration technology. The HEPASilent tech and OdorFence system captures 99.97% of pollutants while effectively reducing odours through its bio-formulation process. Features include 360-degree Surround Boost airflow distribution, intuitive dynamic display with air quality indicators, and app control functionality. The light grey unit measures 393mm wide and operates quietly while being 40% more compact than competitors and using 53% less plastic. Ideal for living rooms and large bedrooms requiring comprehensive air purification.
in 7 offers
The lowest price for Blueair Signature SP4i Air Purifier Grey right now is $699.00 at Bing Lee, compared across 7 retailers.
The all-time low was $465.00 on 6 Oct 2026 — today's price is 50% above the lowest ever. It has been notably cheaper before — worth setting a price alert.
Blueair Signature SP4i Air Purifier Grey
The Blueair Signature SP4i 113981 air purifier delivers high-performance cleaning for medium-to-large rooms using advanced 7-stage filtration technology. The HEPASilent tech and OdorFence system captures 99.97% of pollutants while effectively reducing odours through its bio-formulation process. Features include 360-degree Surround Boost airflow distribution, intuitive dynamic display with air quality indicators, and app control functionality. The light grey unit measures 393mm wide and operates quietly while being 40% more compact than competitors and using 53% less plastic. Ideal for living rooms and large bedrooms requiring comprehensive air purification.
The Blueair Signature SP4i 113981 air purifier delivers high-performance cleaning for medium-to-large rooms using advanced 7-stage filtration technology. The HEPASilent tech and OdorFence system captures 99.97% of pollutants while effectively reducing odours through its bio-formulation process. Features include 360-degree Surround Boost airflow distribution, intuitive dynamic display with air quality indicators, and app control functionality. The light grey unit measures 393mm wide and operates quietly while being 40% more compact than competitors and using 53% less plastic. Ideal for living rooms and large bedrooms requiring comprehensive air purification.
Prices last updated 5 Nov 2026.
Last updated at 05/11/2026 12:28:13
Blueair Signature SP4i, Light Grey 113981
Free delivery between 7–14 Nov
Blueair Signature SP4I Air Purifier - Grey
Delivery between 8–13 Nov $19.95
Blueair Signature SP4i Air Purifier
Blueair Signature SP4I Air Purifier - Grey
Delivery between 8–13 Nov $19.95
Blueair Signature SP4I Air Purifier - Grey
Delivery between 8–13 Nov $19.95
Blueair Blue Signature SP4i Air Purifier | HEPASilent Smart WiFi Air Cleaner | Sleep Solutions
Free delivery between 6–13 Nov
BLUEAIR Air Purifiers for Home Large Room up to 3,385 Ft, Signature SP4i
Free delivery between 16–19 Nov
| Coverage Area | 57畳 |
| Color | Dark Blue |
| Functionality Type | Air Purifier |
| Suitable Space | Living room |
| Suitable Use | Air purification |
Blueair Signature SP4i, Light Grey 113981
Free delivery between 7–14 Nov
Blueair Signature SP4I Air Purifier - Grey
Delivery between 8–13 Nov $19.95
Blueair Signature SP4i Air Purifier
Blueair Signature SP4I Air Purifier - Grey
Delivery between 8–13 Nov $19.95
Blueair Signature SP4I Air Purifier - Grey
Delivery between 8–13 Nov $19.95
| Coverage Area | 57畳 |
| Color | Dark Blue |
| Functionality Type | Air Purifier |
| Suitable Space | Living room |
| Suitable Use | Air purification |
