잠시만 기다려 주세요. 로딩중입니다.

Effects of Indoor Air Purifiers on Children with Asthma

Yonsei Medical Journal 2020년 61권 4호 p.310 ~ 316
 ( Lee Ga-Hee ) - Inha University School of Medicine Department of Pediatrics

김정희 ( Kim Jeong-Hee ) - Inha University School of Medicine Department of Pediatrics
 ( Kim Sung-Roul ) - Soonchunhyang University Department of Environmental Health Science
이상운 ( Lee Sang-Woon ) - Soonchunhyang University Department of Environmental Health Science
임대현 ( Lim Dae-Hyun ) - Inha University School of Medicine Department of Pediatrics

Abstract


Purpose: To evaluate the effects of air purifiers on the concentrations of indoor air pollutants and on asthma control in children.

Materials and Methods: In this randomized crossover trial, daily use of an air purifier filter was compared with a matched placebo with the filter off. Thirty elementary school students who had asthma were enrolled and randomly allocated to one of two groups. The primary endpoints were changes in indoor air quality, asthma severity, lung function, airway inflammatory, urine microbiome, and phthalate after the installation of air purifiers. PM2.5 and CO2 were measured as indoor air pollutants. Asthma severity was assessed in terms of both symptom and medication scores acquired using a daily questionnaire. The higher the score, the better the symptom or the less frequent the use of medication. Peak expiratory flow rate and fractional exhaled nitric oxide were also measured.

Results: The mean age of the enrolled patients was 9.2±1.98 years. The mean concentration of PM2.5 was 17.0 μg/m3 in the filter-off condition, but significantly lower at 9.26 μg/m3 in the filter-on condition. Medication scores were 6.9 for the filter-off and 7.12 for the filter-on conditions, reflecting a statistically significant decrease in the frequency of medications used during air purifier operation. Bacterial richness, as determined using the Chao 1 index, was markedly lower in the filter-on than the filter-off condition.

Conclusion: This study suggests that air purifiers benefit medication burden in children with asthma by reducing PM2.5 levels.

키워드

Asthma; air purifier; indoor air pollutants; fractional exhaled nitric oxide; urine microbiome; children
원문 및 링크아웃 정보
  
등재저널 정보
SCI(E)
MEDLINE
KCI
KoreaMed