The masks with elastic ear loops, which many people are wearing for coronavirus, can be largely inefficient in terms of filtering. That's according to a new study in the Journal of the American Medical Association Internal Medicine.
According to the study:
Procedure masks with ear loops performed at 38.1% [filtration efficiency] and were the least effective when moving the head left and right (21.2% [filtration efficiency]), and created visible gaps between the face mask and the wearer.JAMA Internal Medicine
The study found that masks secured with ties rather than with elastic ear loops are much more efficient at filtration.
It also stated that, under the theory that coronavirus is often transmitted on relatively large droplets, even masks that don't filter smaller particles with great efficiency can still be helpful in filtering larger droplets containing Covid-19 .
Also on the plus side, the study concluded that for medical professionals, when there is a shortage of N95 masks (named for their 95% filtration efficiency), there are other alternatives that can work well.
Read all about it at the link below: