The value shown on Purple Air link is a RAW value, the following shows the RAW value and the equivalent AQHI Value.
PM2.5 (ug/m3) Value:
61 = 7 AQHI value
71= 8 AQHI value
81= 9 AQHI value
91= 10 AQHI value
>101= 10+ AQHI value
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