A simple but very effective video.

While experts have called on the public to wear face coverings in order to help curb the spread of Covid-19, there are some out there who can’t wear masks for medical reasons.

There are also those who refuse to wear them as they say face coverings limit their oxygen intake.

However, a video debunking the myth around oxygen levels and face coverings recently went viral across the world.

This video came from Irish GP Dr Maitiú Ó Tuathail, and it received media attention in the UK, the US and other countries around the world.

In the simple video, Dr Ó Tuathail monitored his oxygen level and proceeded to put on six face masks at the same time to show that his oxygen level did not dip by wearing them.