A Hamilton woman was rushed to hospital Tuesday afternoon after she mixed several household cleaners together and inadvertently created toxic chlorine gas, emergency officials say.

Hamilton fire crews arrived on scene at her home on Oriole Crescent around 1 p.m., Hamilton fire spokesperson Claudio Mostacci told CBC News.

The found the woman on the ground outside a townhouse, clearly in distress, Mostacci said.

"She had followed a home recipe to make some pesticides, mixing several household cleaners," he said.

Chlorine gas can occur when mixing bleach with other cleaners. Vapours from the gas can attack a person's eyes and mucous membranes, and is extremely dangerous if inhaled.

"It will burn your lungs and throat, Mostacci said.

"You should never mix products together — you could create a deadly gas."

Tom Murphy, operations supervisor with the Hamilton Paramedic Service, told CBC News paramedics "treated a patient with a non-life threatening injury."

The Hamilton fire hazmat unit had to be called in to deal with the chemical mixture, because of the deadly fumes.

Firefighters wearing protective gear and breathing apparatus got inside the home and placed the mixture into proper containers to dispose of it.

The Hamilton Fire Department wants the public to know that exposure to chloramine gases can cause: