The father of a Berkshire woman who died from carbon monoxide poisoning is campaigning for better awareness about the risks.
Katie Haines, 31, was discovered by her husband, Richard, who tried to resuscitate her at a house in Barkham Road, Wokingham, Berkshire in February.
Her father Gordon Samuel said a faulty boiler caused a gas leak in the house.
He wants more done to ensure gas appliances are regularly checked and serviced.
Mrs Haines, a former journalist, worked as a press officer at Oxford University and had recently married before her death.
Her father said: "She was a perfect daughter. She was a very sociable young woman.
"There was a phrase that came through at her funeral which was that she was the glue that held everybody together among her friends.
"She was at the height of happiness... then two months later she was killed by this silent killer."
Mr Samuel attended the launch of Carbon Monoxide Awareness Week at the House of Lords on Monday where a number of experts in the industry spoke.
He also said anyone with gas devices in their home should fit an audible alarm.
"It came happen very quickly, the concentration of carbon monoxide was so great that she had inhaled 45% into her bloodstream.
"Gas devices, like cookers, can be lethal, and they need to be cleaned as well as serviced."