Are there volatile organic compounds in your home's indoor air?

What's actually in it

Volatile organic compounds (VOCs) are chemicals that evaporate from household products at room temperature. They come from paint, varnish, furniture, carpet, cleaning products, air fresheners, and building materials. Some VOCs you can smell, like the "new carpet" or "fresh paint" odor. Many are odorless. Indoor VOC levels are typically 2 to 5 times higher than outdoor levels because the chemicals accumulate in enclosed spaces.

What the research says

A 2026 study in Sci Rep measured VOC levels in European homes and assessed the health risks from daily exposure. The researchers tested indoor air from multiple residences and compared the chemical concentrations to health screening values.

Homes contained a cocktail of VOCs including formaldehyde, benzene, toluene, and xylene. Formaldehyde levels in some homes exceeded safety thresholds. Benzene, a known carcinogen, was detectable in most homes tested.

The health risk assessment found that long-term exposure to the VOC mix in a typical home increases the risk of respiratory irritation and cancer. Newer homes and recently renovated spaces had the highest levels because new materials off-gas the most.

Simple steps can help: open windows daily, choose low-VOC paints and finishes, let new furniture air out before bringing it into enclosed rooms, and avoid synthetic air fresheners that add more VOCs to the mix.