Air Quality Monitor Not Connecting or Reporting Accurately

Air quality monitors track PM2.5, CO2, and other pollutants. This guide covers issues.

PurpleAir Touch Setup

1. Use PurpleAir app or web setup
2. Connects to 2.4GHz WiFi
3. Touch screen shows readings
4. Creates PurpleAir map entry
5. Indoor use recommended

Qingping Air Monitor 2

1. Works with Mi Home or HomeKit
2. Bluetooth for local viewing
3. WiFi version enables cloud sync
4. E-ink display always shows readings
5. Measures PM2.5, PM10, CO2, TVOC

Readings Seem Inaccurate

1. Allow 15-30 minute warmup
2. PM sensors calibrate over 24 hours
3. CO2 baseline needs fresh air exposure
4. Place away from direct airflow
5. Compare with outdoor AQI for reference

PM2.5 Spikes

1. Cooking causes significant spikes
2. Candles and incense affect readings
3. Normal for spikes during activities
4. Watch for elevated baseline
5. Ventilation reduces levels

Home Assistant Integration

1. PurpleAir via custom integration
2. Qingping via Mi Home or HomeKit
3. Creates sensor entities per pollutant
4. Automate purifiers based on readings
5. Historical tracking in HA

Maintenance

1. Clean air intake periodically
2. Use compressed air gently
3. Replace sensors per manufacturer schedule
4. Battery or USB powered depending on model
5. Keep firmware updated