Long-standing fire safety regulations in the UK, which led to the inclusion of potentially hazardous chemicals in sofas, are finally set for revision.

This change comes after persistent advocacy from Delyth Fetherston-Dilke, a mother who has campaigned tirelessly, highlighting the dangers these chemicals pose to families within their homes.

An investigation by The Sunday Times uncovered that for nearly four decades, the UK’s stringent rules have necessitated the use of significant quantities of chemical flame retardants to meet fire safety standards, unlike any other nation.

On average, a sofa in the UK is laden with around 2kg of these toxic substances.

Dilke has consistently pushed for changes, emphasizing that the current regulations pose an unseen health threat, especially to young children and pets who are in frequent contact with these chemically treated materials.

Recently, the World Health Organization, in the latest edition of the Lancet Oncology journal, reported that TCPP, the most commonly used flame retardant in UK sofas, is ‘probably carcinogenic to humans’.

Scientists and campaigners have also warned that these chemicals do not stay locked inside furniture. 

Instead, they can escape into household dust and be inhaled or ingested, with studies suggesting young children are particularly vulnerable due to their closer contact with floors and soft furnishings.

Fire safety rules that forced British sofas to be packed with potentially harmful chemicals are finally being overhauled after a years-long campaign by a mother who warned they posed a risk to families. Pictured: A sofa dumped on a pavement in Chalvey

The policy U-turn comes after a long campaign by Delyth Fetherston-Dilke (pictured), a former lawyer from Richmond, southwest London, who uncovered the issue after retraining as an upholsterer

Officials now say they will replace the open flame test with a ‘smoulder test’, which more closely reflects real-life fire risks such as a lit cigarette, The Times reports.

The change is intended to maintain fire safety standards while significantly reducing reliance on chemical treatments. 

The government has acknowledged growing evidence linking flame retardants to a range of health concerns, including cancer, neurotoxicity, developmental issues and disruption to hormones. 

There are also fears the chemicals increase the toxicity of smoke in a fire and make recycling furniture far more difficult. 

The policy U-turn comes after a long campaign by Delyth Fetherston-Dilke, a former lawyer from Richmond, southwest London, who uncovered the issue after retraining as an upholsterer.

 While studying furniture construction, she found extensive scientific research suggesting the very chemicals designed to slow fires could be harmful to humans and animals. 

She has argued for years that Britain’s rules left households exposed to unnecessary risks without clear evidence they saved lives.

Her concerns were echoed by the fact that major retailers produce different versions of sofas for different markets, with flame retardants added only to those sold in the UK and Ireland.

The regulations themselves date back to late-20th century reforms brought in after a series of fatal fires, including a blaze at a Woolworths store in Manchester that killed 10 people. 

But critics say the rules have remained largely unchanged despite evolving evidence about health impacts. 

Warnings are not new. As far back as 2017, experts were raising alarm over a possible link between flame retardants and rising cancer rates.

Former government adviser Terry Edge claimed at the time that the chemicals could be contributing to thousands of illnesses, particularly affecting children. 

Separate research from Duke University found higher levels of certain flame retardants in the blood and homes of thyroid cancer patients. 

Although some of the most dangerous compounds have since been banned, they remain present in older furniture and continue to circulate in household dust. 

Ministers will now consult on the proposed changes, with campaigners hailing the decision as a major breakthrough after years of inaction. 

Fetherston-Dilke said the shift marked a turning point, after more than a decade of pressure to bring Britain in line with international standards while better protecting public health.