Air cleaners, especially those equipped with HEPA filters or activated carbon, can significantly reduce airborne pollutants, including allergens, smoke, and dust. By filtering out these particles, air cleaners can help alleviate symptoms for individuals with allergies or respiratory conditions. However, while they improve indoor air quality, they should complement other health and safety measures rather than replace them. Proper ventilation and reducing sources of indoor pollution are also crucial. Air cleaners can contribute to a healthier living environment but are not a standalone solution for eliminating health risks.