Table 3:

Fraction of permanently degraded PurpleAir sensors in climate zones and locations

	Percentage of permanently degraded sensors
All	240 out of 11,932 (2.0%)
Device Location
Inside	2 out of 935 (0.21%)
Outside	238 out of 10,997 (2.2%)
Climate Zone
Cold	51 out of 2,458 (2.1%)
Hot-Dry	54 out of 2,680 (2.0%)
Hot-Humid	11 out of 281 (3.9%)
Marine	84 out of 4,842 (1.7%)
Mixed-Dry	3 out of 361 (0.8%)
Mixed-Humid	24 out of 750 (3.2%)
Sub Arctic	1 out of 58 (1.7%)
Very Cold	3 of 108 (2.8%)
No information	9 of 394 (2.3%)