Does the air purifier indicate the air quality levels of the room?
The 411 Auto, 311 Auto and 211+ Auto air purifiers have integrated particle sensors that can detect indoor air pollution level and display your air quality levels with the LED at the front of the unit in blue, amber and red.
Why is the air purifier detecting high levels of Particulate Matter (PM)?
即使空氣品質良好，微粒物質 (PM) 頂峰也會暫時出現，這是正常現象，因為空氣清淨機的感應器每次接觸到空氣中的微粒時都會作出反應。
從窗戶打開或通風處進入的室外污染也可能導致 PM 含量過高。
PM 含量應該會隨著空氣淨化器的使用和通風而降低。
Examples of PM sources: candles, smoke, cooking, incense, fireplace, accumulated dust, unfiltered vacuum cleaner, pollen, pets, etc.
如何降低微粒物質 (PM) 含量並改善室內空氣品質？
- 請確保空氣淨化機是在門窗關閉的房間中使用。
- Set the highest speed of the air purifier temporarily or use the Auto Mode (not available with all models).
- Ventilate the room temporarily.
What to do if the PM levels do not decrease?
- Try to find the pollution source. If the PM values are constantly high, the indoor air might be polluted. If your air purifier has the WiFi feature, the Blueair app can help find the source of pollution. Open the Blueair app, add your air purifier and check the air quality history: check the peaks’ date and try to think of what can have happened at those moments.
- Test the air purifier in a smaller room. Test the PM sensor by placing the unit in a small room running at full speed with all windows and doors (and ventilation if possible) closed.
- Clean the sensors. If the PM levels are constantly very high, there might be accumulated dust on the sensor giving a false indication. Vacuum the outside of the air purifier, especially the air inlets, outlets, and the inlet for the air quality sensor. Power off the unit before vacuuming. See sensor care and maintenance FAQ and user manual.
If the above actions did not help, please contact our Blueair Customer Support teams to investigate further.