What is the difference between Blue Signature and Blue Max?

Updated May 22, 2025

Category	Feature	Blue Signature	Blue Pure 211i Max
Design & Build	Form Factor	Modern cylinder with tabletop functionality	Standard vertical cylindrical form
	Surface Use	✅ Can be used as a tabletop	❌ Not designed for placing items on top
	Customization	Wooden legs and chrome disc accessories available	❌ Not available
	Integrated Handles	Recessed side handles for easy lifting	❌ No
Display & Controls	Interface	Touch-sensitive digital display	Standard touch controls
	Wave to Wake	✅ Yes – motion-activated display	❌ No
	Display Lock	✅ Yes	✅ Yes
Smart Features	Auto Mode	✅ Yes	✅ Yes
	Night Mode	✅ Yes	✅ Yes
	AirSense	✅ Periodic air refresh (app-controlled)	❌ Not Available
	App Integration	Full control via Blueair App	Full control via Blueair App
	Wi-Fi	2.4 GHz only	2.4 GHz only
Sensors & Feedback	Particle Sensors	PM1, PM2.5, PM10	PM1, PM2.5, PM10
	AQI Display	5-color LED ring	LED ring only
	On-Screen Particle Data	Yes – numeric PM2.5 value visible	Yes – numeric PM1, 2.5, 10 value visible
Filter & Maintenance	Filter Type	Multi-layer HEPASilent with RealTrack monitoring	Multi-layer HEPASilent with RealTrack monitoring
	Filter Lifespan	~9–12 months, usage-based	~6–9 months, usage based
	Pre-Filter	Washable, removable fabric	Washable, removable fabric
	Filter Replacement Alert	Smart usage-based (RealTrack)	Smart usage-based (RealTrack)

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