Indoor air pollution is an insidious threat, now ranked as the eighth leading cause of death worldwide. Rachid Ait-Namane, a certified interior environment advisor, shares expert strategies for creating a healthier, pollutant-free home. When pollution comes to mind, we often picture factory emissions and car exhaust outdoors. In reality, it lurks in our offices and homes—the enclosed spaces where we spend about 80% of our time. Worse, indoor pollution is far more hazardous than outdoor air.
France's National Agency for Food, Environmental and Occupational Health & Safety (ANSES) flags indoor pollution as a major public health concern due to its harmful short- and long-term effects. A 2018 report from the Health Effects Institute* revealed that it caused 2.6 million deaths globally in 2016, primarily from heating and cooking with solid fuels like wood, coal, and organic matter.
Rachid Ait-Namane, interior environment advisor in the Île-de-France region**, offers proven habits and best practices for cleaner indoor air.
"Don't confuse ventilation with airing," says Ait-Namane. Ventilation renews air continuously via systems like VMC (controlled mechanical ventilation), exhaust vents, and air inlets. Keep them unobstructed, running, and maintain them regularly.
Airing means briefly opening windows and doors to refresh the space.
Monitor your home's health with a thermometer (aim for 18-20°C) and hygrometer (40-55% humidity) to prevent mites and mold.
Open windows for 15 minutes morning and evening, even during outdoor pollution peaks. Morning airing reduces bedroom CO2 levels from respiration and clears confined air. Shake out bedding too.
Vacuum twice weekly to remove dust and mites—key allergy triggers. Cover carpets, sofas, curtains, pet beds, and mattresses (weekly).
"Your home isn't a hospital," Ait-Namane stresses. Skip bleach, anti-tartar foams, and deodorizers that release volatile organic compounds (VOCs) and semi-volatiles (SVOCs), worsening air quality and risking cancers, allergies, heart issues, headaches, and more. Use scented candles, incense, or essential oil sprays sparingly, especially if allergic or asthmatic.
Opt for eco-friendly basics: baking soda, white vinegar, lemon, and black or Marseille soap—for your health and the planet.
Drying indoors spikes humidity—avoid unventilated rooms or bedrooms. In small spaces like a 20m² studio, use a moisture absorber like Rubson. Outdoors is best.
With heaters off and milder weather, airing is easier. Repaint, replace flooring, or add furniture then. Plywood, chipboard, paints, and plastics emit VOCs/SVOCs like phthalates (endocrine disruptors), bisphenol A (BPA), and formaldehyde—a proven carcinogen per IARC since 2004.
Solvents in paints link to skin issues, organ damage, cancers, and fertility problems. Check labels, wear masks/gloves/goggles during work, and air out thoroughly.
Indoor smoking harms smokers and exposes others to secondhand toxins that linger in fabrics.
No rigorous studies confirm plants purify air; they add humidity and allergenic soil.
Devices like Dyson's Pure Hot+Cool Link™ capture 99.95% of allergens/pollutants. Place one per room if possible, prioritizing high-use areas, despite the cost.
* https://www.stateofglobalair.org/sites/default/files/soga-2018-report.pdf
**https://interieurenvironment.com/site/
