대한의료관련감염관리학회 Korean Society for Healthcare-associated infection Control and Prevention.

pISSN 0705-3797. eISSN 2586-1298.

Table. 3.

Table. 3.

Air changes/hour (ACH) and time required for airborne-contaminant removal by efficiency*

Air changes/hour (ACH) Time (mins.) required for removal 99% efficiency Time (mins.) required for removal 99.9% efficiency
2 138 207
4 69 104
6 46 69
8 35 52
10 28 41
12 23 35
15 18 28
20 14 21
50 6 8

* Based on Coronavirus disease 2019 (COVID-19) outpatient dialysis facility preparedness assessment tool from Centers for Disease Control and Prevention in 2020.

Korean J healthc assoc Infect Control Prev 2020;25:11~20 https://doi.org/10.14192/kjicp.2020.25.1.11
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