Effects of the use of air purifier on indoor environment and respiratory system among healthy adults.

Effects of the use of air purifier on indoor environment and respiratory system among healthy adults. - Effects of the use of air purifier on indoor environment and respiratory system among healthy adults.

Status

Active, not recruiting

Phases

Unknown

Study type

Interventional

Source

JPRN

Registry ID

JPRN-UMIN000031902

Enrollment

Registered

2018-04-01

Start date

2018-05-01

Completion date

Unknown

Last updated

2026-06-29

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

N/A (healthy adults)

Interventions

With air purifier filter Without Air purifier filter

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: The household without using air purifier and with living room size of 6 to 12 tatami.

Exclusion criteria

Exclusion criteria: Smokers, households with smokers and persons with respiratory symptoms.

Design outcomes

Primary

Measure	Time frame
Pulmonary function, exhaled nitric oxide	—

Secondary

Measure	Time frame
Indoor concentrations of particulate matter, endotoxin and ozone. Respiratory symptoms.	—

Countries

Japan

Contacts

Public ContactYoshiko Yoda

Hyogo College of Medicine Public health

yoda-y@hyo-med.ac.jp0798-45-6566

Outcome results

None listed

Source: JPRN (via WHO ICTRP) · Data processed: Jul 3, 2026