Howson’s 15-year-old son found her on the kitchen floor and quickly called for an ambulance.
Doctors at the Northern General Hospital say the combination created chlorine gas, which is can be deadly.
“The doctor asked if I had been cleaning, because the paramedics mentioned a strong smell of bleach,” Howson said.
“He said mixing those chemicals with the hot water had given me chlorine gas poisoning.
“I was stunned, I couldn’t believe it. He said that it happens far more than you’d think.”
Many cleaning products have clear instructions on the labels warning customers against combining with other cleaning agents.
Chlorine gas can be created by mixing chlorine bleach with acidic washing agents such as acetic, nitric and phosphoric acid.
Symptoms of chlorine gas poisoning usually include difficulty breathing, coughing, nose irritation, throat irritation and eventually vomiting or headache.
This article first published on Starts at 60.