The widely-used surgical three-ply facemask.

MUKAH: Wearing a face mask for a long time can be harmful to health and may result in death, claimed a social media posting which has gone viral.

According to the posting yesterday, face masks are supposed to be worn for limited time only.

“If you wear it for a long time, oxygen in the blood is reduced and oxygen to the brain is reduced.

You start feeling weak and this may lead to death,” it said.

It advised the public not to wear face masks when they were alone or when they were at home.

It added a lot of people in their air-conditioned cars were still wearing face masks.

The masks should only be worn in crowded places and when in close contact with one or more persons.