Finding · as stated by the study, recorded by Coridum · status verified-machine
Finding F-1427
“The first approach compared PM concentrations before and after implementation of air purifiers, which revealed significant reductions: PM1 decreased by 16% to 72% (p < 0.01), PM2.5 by 18% to 67% (p < 0.01), and PM10 by13% to 49% (p < 0.05) at an air turnover rate (kTO) of 5.6 h-1.”
Structure
- Factor
- Particulate matter (PM₂.₅ and PM₁₀)
- Intervention
- Air purifiers
- Setting
- therapy room
- Study design
- study in a traditional Chinese medicine therapy room: particulate matter measured before and after the installation of air purifiers, evaluated by a before-and-after comparison, by the indoor to outdoor ratio and by a linear regression model (class 3)
- Effect
- difference 72
- Caveat
- one room; the indoor to outdoor ratios of PM2.5 and PM10 fell by 46 % and 35 % in the same study
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