Effects of Indoor Air Purifiers on Children with Asthma.

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. PM_2.5 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

SUBMITTER: Lee GH 

PROVIDER: S-EPMC7105409 | biostudies-literature | 2020 Apr

REPOSITORIES: biostudies-literature