Air purifier/ User Manual
11 / EN
6
Introduction for Operation
AIR QUALITY INDEX
Particulate Matter (μg/m3)
PM2.5
Good
Moderate
Unhealthy
51-100
101-150
151-200
Very Unhealthy
201-300
Hazardous
301-500
*Table: Cautionary Statements for Guidance on the Air Quality Index (AQI) and PM2.5 level.
(According to U.S. Environmental Protection Agency (EPA) Office of Air Quality Planning and Standards Air Quality Assessment Division, Technical Assistance Document for the
Reporting of Daily Air Quality – the Air Quality Index (AQI), EPA 454/B-18-007, September 2018. Link: https://www.airnow.gov/sites/default/files/2020-05/aqi-technical-
assistance-document-sept2018.pdf )
Unhealthy for
Sensitive Groups
12.1-35.4
35.5-55.4
55.5-150.4
150.5-250.4
250.5-500.4
0-12.0
Category
Up to 50