The 5240i is the middle-sized device in Blueair’s range of three DustMagnet air purifiers. It’s compact, like a small side table, at 52x22x22cm. You could easily pop a houseplant on it. Or sit it next to the sofa and leave the remote control and a cuppa on it. Just be careful with the cuppa or when watering the plant.
As the name suggests, it collects dust as well as allergens, germs, pollen and pet dander. Tech features include voice and app control, and even geofencing, so it saves energy when no one is home.
This model is designed to completely filter the air in a 48m² room every 30 minutes. That’s a large room: it can do a more typical 20m² room every 12.5 minutes. Its clean air delivery rate (CADR) is 226 m³ per hour for dust, 232m³/h for smoke and 238m³/h for pollen.
Below it in the range, in terms of price and model number, sits the DustMagnet 5210i (£329) which has the same specs and the same dimensions – it’s effectively the same machine, only...