Australian parents have been warned to take necessary precautions after another toddler has died due to blind cord strangling, the second in just a week's time.

On Tuesday, emergency paramedics rushed to a house on Hillcrest Road, Quakers Hill in Sydney's north-west after receiving a 6.25pm (AEDT) reporting of a 15-month old toddler found unconscious in her cot.

Already in a critical condition, paramedics together with a CareFlight doctor worked to resuscitate the baby girl before transferring her to Westmead Children's Hospital. She died later in the day in the hospital.

Police authorities said they will conduct a post mortem examination to determine the death of the child and later prepare a report for the coroner. Initial investigations, however, they said, point towards entanglement in a blind cord as the probable cause of death.

"It's just one of those horrible accidents that can happen. It's just something you wouldn't be aware of," Christine Erskine, Kidsafe NSW Executive Officer, told ABC Radio.

But parents would still be able to avoid such tragic accidents by being more aware and conscious of the surroundings where they place their babies, she said.

"One of the issues is in smaller rooms, there's not much choice about where to put furniture, so you may put the cot against the window for light and space," Ms Erskine said.

''We suggest that cots and bedding are away from a window. And you have blinds and cords that meet the new standards.''

The new standard blinds no longer requires loops, she said.

"If you have an old set of blinds make sure that they don't have loops on them so that children can't get tangled up," she said.

On Jan 30, a 16-month-old girl in Hornsby died due to blind cord while sleeping in her cot.

Data from the Australian Competition and Consumer Commission said at least 11 children have died in Australia between 2001 and 2008 after being caught in blind cords.