The Blue Pure 211i Max has a sensor that can detect levels of PM from 1, 2.5, and 10.
PM stands for particulate matter, which is a term for a mixture of solid particles and liquid droplets found in the air. Particles have different sizes and are mostly invisible.
- PM 10 are particles with a diameter of 10 micrometers and smaller. Examples of PM10 are dust from industrial and construction sites, wildfire smoke, and pollen.
- PM 2.5 has a diameter of 2.5 micrometers and smaller( human hair is approximately 70 micrometers in diameter.) Examples of PM 2.5 are house dust, animal dander, cooking oil smoke/grease, smog, fly ash, and settling dust.
- PM 1 has a diameter of 1 micrometer and smaller. Examples of PM 1 (from 0.3 to 1 micrometer) are suspended dust, house dust, animal dander, smog, tobacco smoke, and soot contaminants.
*Particulate matter is generally expressed in micrograms per cubic meter (µg/m³)
The display on the control panel will showcase real-time PM values depending on what size is toggled. (See #7 on display infographic below)
What does the filter replacement indicator light mean?
When the filter replacement indicator (#6 on infographic) is lit, that means it is time to replace your filter with a brand-new one. Filters generally have a lifetime of 6-9 months and it is important to the functionality of your device to change the filters within these intervals.
How to reset the filter replacement indicator on your Blue Pure Max
What do the colors on the AQI sensor mean?
The color displayed on your device will be based on the pollution readings from the PM sensor.
- Blue: Excellent
- Green: Good
- Yellow: Moderate
- Orange: Polluted
- Red: Very Polluted
