Indoor Air Quality: 6 Common Household Items That May Affect Your Lungs — And How to Use Them Safely

Your lungs react to what you breathe in — even the things you can’t see or smell.

Common indoor air concerns include:

  • Volatile Organic Compounds (VOCs) – gases emitted from paints, cleaners, furniture, and air fresheners

  • Fine Particulate Matter (PM2.5) – tiny particles that can lodge deep in the lungs

  • Ozone – produced by some air purifiers and cleaning devices

These pollutants may contribute to:

  • Irritated eyes, nose, or throat

  • Asthma attacks

  • Headaches or fatigue

  • Increased risk of lung infections

 People with asthma, allergies, children, and the elderly are more sensitive to poor indoor air.

 6 Common Household Items to Use More Mindfully

1. Scented Candles & Air Fresheners

They may smell pleasant, but many release fragrance chemicals like limonene or phthalates.
When limonene reacts with indoor ozone, it can form formaldehyde, a respiratory irritant.

Burning paraffin wax (a petroleum by-product) can also emit soot and VOCs, similar to those found in car exhaust.

 Safer tips:

  • Choose beeswax or soy candles with cotton wicks

  • Avoid synthetic fragrances — use essential oils sparingly

  • Always ventilate the room while burning candles

  • Limit use if you or someone in the home has asthma or allergies