To keep your Blue Signature air purifier operating at peak performance, Blueair recommends a combination of routine cleaning, filter care, and safety checks. Below is a complete breakdown of the recommended maintenance tasks:
1. General Cleaning
Frequency: Monthly or as needed
What to Do:
- Unplug the device before cleaning.
- Use a soft, clean cloth to wipe down the top and exterior surfaces.
- Avoid harsh chemicals, gasoline, or solvents, as these can damage the casing and electronics.
2. Pre-Filter Maintenance
Frequency: Every 2–4 weeks (more often if you have pets or high dust levels)
What to Do:
- Vacuum using a soft brush attachment
- Or wash it according to label instructions and air dry thoroughly before reattaching
3. Filter Replacement
Frequency: Every 9–12 months, or when the filter replacement indicator turns red
What to Do:
- Follow the step-by-step replacement instructions in the manual.
- After replacing, reset the filter indicator by:
- Holding the Fan Speed button for 15 seconds, or
- Using the Blueair app
5. Sensor Care (Air Quality Sensors)
Frequency: If air quality readings seem inaccurate
What to Do:
- Power off the device
- Clean around the sensor vents with a dry cloth or low-suction vacuum
- Restart the unit