Flame-retardant chemicals in sofas and other household items may pose serious health risks, according to scientists. The UK's fire safety regulations, among the strictest globally, require furniture to contain these chemicals, but evidence suggests they can be carcinogenic and linked to diabetes, high cholesterol, and obesity. Dr Joanna Cloy, who leads Fidra's flame retardants project, stated: "There's no evidence that our outdated regulations have saved more lives in the UK, and these chemicals can actually make smoke more toxic while a fire smoulders. Firefighters are developing cancer from exposure to it."
Indoor Air Pollution from Everyday Activities
Prof Francis Pope, chair of atmospheric science at the University of Birmingham, noted that people spend 80-90% of their time indoors, where pollution levels can be high. Burning anything indoors—gas cooking, wood burners, cigarettes, or incense—releases pollutants that affect respiratory and cardiovascular systems and are linked to dementia and Alzheimer's. Prof Frank Kelly of Imperial College London added that gas cooking produces nitrogen dioxide and PM2.5 particles, which can reach the brain. Nicola Carslaw, professor in indoor air chemistry at the University of York, explained that these small particles bypass the nose and throat defenses.
The solution is simple: open windows whenever possible, use extractor fans during cooking, and vacuum with a HEPA filter to reduce PM2.5 and PM10 particles.
Flame Retardants in Furniture and Soft Furnishings
UK furniture contains more flame-retardant chemicals than anywhere else, despite links to cancer, endocrine disruption, and reduced IQ. Prof Miriam L Diamond at the University of Toronto found flame retardants in children's mattresses and bedding, along with plasticisers and phthalates. Simulating a child bouncing on the bed "accelerated the release of the chemicals," she said. To avoid these, choose wool, cotton, leather, or solid wood products, or buy secondhand furniture made before 1988. Look for Oeko-Tex, Greenguard Gold, or Global Organic Textile Standard certifications.
Cleaning Products and Personal Care
Many cleaning products, even "natural" ones, release volatile organic compounds (VOCs) that react with indoor ozone to form formaldehyde or ultrafine particles. Carslaw warned that plug-in air fresheners and essential oils constantly emit VOCs, damaging lung epithelium and worsening eczema. Kelly noted that cleaning products are not comprehensively tested for health effects, especially in combination. He advised opening windows after cleaning and avoiding sprays: tip cleaner onto a cloth instead.
Antibacterials and Antimicrobial Resistance
Sales of antibacterial products rose 40-60% during the pandemic, but they are no more effective than soap and water. Diamond called their widespread use "very stupid" as it drives antimicrobial resistance. Avoid products with quaternary ammonium compounds; use ethanol-based sanitizers or a 3% hydrogen peroxide solution for surfaces.
Vinyl Flooring and Plasticisers
Phthalates and non-phthalate plasticisers in vinyl flooring leach into dust and are inhaled or absorbed through skin. Paul Scheepers, a toxicologist at Radboud University, warned that crawling children are especially vulnerable. Wet mopping is the best cleaning method; avoid vacuuming.
Non-Stick Pans and PFAS
Per- and polyfluoroalkyl substances (PFAS) in non-stick coatings persist in the environment and body, linked to cancer, liver damage, and developmental issues. MPs have called for a ban. Kelly advised avoiding metal utensils on non-stick surfaces and switching to cast-iron or steel cookware.
Plastics and Bisphenols
Bisphenol A (BPA) is banned in EU food contact materials but still allowed in UK storage boxes and can linings. Scheepers noted that bisphenols release when heated, so avoid microwaving plastics unless marked microwave-safe PE or PP. Use glass or ceramic containers instead.
Mould and Damp
Cold, damp homes breed mould, releasing mycotoxins that irritate lungs and skin. Kelly's WellHome Study found damp in homes near busy roads. Open windows after showering, use extractor fans or dehumidifiers. Awaab's Law now requires landlords to address mould quickly in rented properties.
