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- Full-face snorkel masks have been a subject of debate amongst the scientific community.
- The mask was ruled partially responsible for the death of a British woman in Egypt, a coroner said.
- One woman told Insider how she nearly drowned wearing one in the Seychelles.
When Sally Standley arrived in the Seychelles with her family and friends, she looked forward to soaking up the sun and snorkeling in the clear blue water of the Indian Ocean, rich in beautiful tropical fish.
The fit, healthy 59-year-old had snorkeled before, but this was the first time she'd used a full-face mask.
One day when she was out snorkeling, about a week into the holiday, her vision suddenly went blurry.