Finding · as stated by the study, recorded by Coridum · status verified-machine
Finding F-1532
“The ultrafine particle (PM1 ) concentration decreased to 7.8 μg/m3 after purifier installation from its initial value of 15.3 μg/m3 , which resulted in a 49.2% reduction and the standard deviation decreased from ±1.6 μg/m3 to ±0.4 μg/m3 , indicating better indoor air quality stability.”
Structure
- Factor
- Ultrafine particles (UFP)
- Intervention
- Air purifiers
- Setting
- dwelling
- Study design
- home-based rehabilitation study with an air purifier installed in the patients' dwellings: particulate matter in several size fractions, temperature and relative humidity measured in the living room, bedroom and kitchen before and after the installation (class 3)
- Effect
- mean
- Caveat
- the study calls PM1 the ultrafine fraction; the standard deviation fell from 1.6 to 0.4 μg/m3
A Finding records what one published document states, verbatim and with its page. It is not a conclusion of Coridum; see the Claims that build on it.