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We tend to think of our indoor air as safer than the polluted air outside. But studies show that indoor air can be up to five times more polluted. One of the most underestimated sources? VOCs. What Are VOCs? VOCs stands for “Volatile Organic Compounds” – chemical substances that evaporate at room temperature and enter the indoor air. Common examples include: Formaldehyde, Benzene, Toluene, Acetone, Terpenes. These compounds are emitted by a surprising number of everyday items

Houseplants can absorb certain VOCs and trap small amounts of PM2.5, but their air-cleaning power in real homes is minimal. Research shows plants work well only in sealed lab chambers, while electric air purifiers remove fine dust, allergens and pollutants far more effectively. Plants are a great addition, but no substitute for true air filtration.

Delhi is one of the world’s most polluted cities in part due to problematic waste-to-energy plants like the one in Okhla. Investigations reveal the release of toxic heavy metals such as cadmium and lead. This poses a serious risk to indoor air quality, especially in buildings with poor ventilation or filtration. This article explores how building technology and clean air strategies can help protect occupants from hidden pollution.