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. 2020 Apr 24;177:106918. doi: 10.1016/j.buildenv.2020.106918

Table 1.

The distribution of performance and price for 100 best-selling air purifiers in China.

P5 P25 Median P75 P95
CADR (m3/h) 170 250 361 455 800
Electric power (W) 22 44 56 70 145
Electric power per CADR (W/(m3/h)) 0.10 0.12 0.15 0.19 0.28
Price (US$) 127 316 493 745 1410
Price per CADR (US$/(m3/h)) 0.51 0.93 1.32 1.86 3.11

CADR = clean air delivery rate. P5 = the 5th percentile of the distribution. P25 = the 25th percentile of the distribution. P75 = the 75th percentile of the distribution. P95 = the 95th percentile of the distribution.