(Mike Stobbe/ Huffington Post) — U.S. government researchers found that two masks are better than one in slowing coronavirus spread, but health officials stopped short of recommending that everyone double up.
The researchers found that wearing one mask — surgical or cloth — blocked around 40 per cent of the particles coming toward the head that was breathing in. When a cloth mask was worn on top of a surgical mask, about 80 per cent were blocked.
When both the exhaling and inhaling heads were double-masked, more than 95 per cent of the particles were blocked, said the CDC’s Dr. John Brooks.
Still, for now, health authorities acknowledge they have their hands full just trying to get more people to wear one mask and wear it correctly. (…)