Air purifiers can help reduce indoor pollutants, dust, smoke, and allergens, especially during severe pollution periods. However, experts say certain types—particularly ozone-generating purifiers—may irritate the lungs and worsen respiratory conditions like Asthma if used improperly. Poor maintenance, dirty filters, or incorrect room sizing can also reduce effectiveness and affect indoor air quality. HEPA-filter-based purifiers are generally considered safer for most homes.
While air purifiers may improve breathing comfort, they should complement—not replace—good ventilation and pollution prevention measures. Regular cleaning, filter replacement, and choosing certified devices are important for safe and effective use.
