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  1. Blueair
  2. Help by Product
  3. Blue Signature

Blue Signature

  • Blue Signature unit is interfering with my other device's WiFi connection
  • What is the best way to move the device?
  • Which filter does my Blueair Signature unit need?
  • How do I clean the pre-filter?
  • What is the countdown to clean air feature?
  • What room size is the Blue Signature air purifier designed for?
  • Can I use the Blue Signature SP4i as a table?
  • When I switch between PM1, PM2.5, and PM10 in the Blueair app, does it change which pollutants the air purifier targets?
  • I don’t notice a difference in the air quality when using the Blue Signature air purifier. Is it working?
  • What is AirSense?
  • How long does the filter last?
  • My Blue Signature air purifier won’t turn on. What should I do?
  • What features are available on the Blueair app for the Blueair Signature?
  • The lights flash when I touch the device.
  • Where can I find the serial number and model number on my Blueair Signature unit?
  • My Blue Signature air purifier is making an unexpected noise. What should I do?
  • How do I install a replacement filter?
  • How do I reset the red light filter replacement indicator on my Blueair Signature unit?
  • How do I factory reset the device?
  • What is the difference between Blue Signature and Blue Max?
  • How do I decrease the brightness of the device?
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