NCT07344987

Effect of Indoor Air Quality Improvement on Health in Patients With Interstitial Lung Disease

A Randomized Crossover Trial of Indoor Air Quality Improvement on Health in Patients With Interstitial Lung Disease

• Status: Not Yet Recruiting
• Phase: N/A
• Study type: Interventional
• Enrollment: 100 (estimated)
• Sponsor: Peking Union Medical College · Academic / Other
• Sex: All
• Age: 19 Years
• Healthy volunteers: Not accepted

Summary

Air pollution threatens the respiratory health of patients with interstitial lung disease (ILD). High-efficiency air purifiers, featuring easy operation and excellent particulate matter removal efficiency, have been shown in previous studies to potentially delay lung function deterioration and reduce acute exacerbation risk in respiratory disease patients. This randomized crossover study employs air purifiers to filter indoor gaseous pollutants, allergens, and other contaminants, aiming to alleviate respiratory irritation, improve daily life comfort, and enhance overall health status in ILD patients.

Conditions

• ILD

Interventions

Type	Name	Description
BEHAVIORAL	Air Purifier (with Filter) Arm	Place an air purifier with high-efficiency filters in the home, and turn it on for at least 18 hours every day.
BEHAVIORAL	Purifier (without Filter) Arm	Place an air purifier without a filter in the home.

Timeline

• Start date: 2026-03-01
• Primary completion: 2026-12-01
• Completion: 2027-06-01
• First posted: 2026-01-15
• Last updated: 2026-01-15