Tight-fitting or double mask helps fight corona

12 February, 2021 12:00 AM printer

Tight-fitting or double mask helps fight corona

Wearing two masks or a close-fitting one offers significantly better protection against catching and spreading Covid-19, according to a new US study released on Wednesday, reports AFP.

The impact of mask-wearing has been a hotly-debated topic worldwide during the pandemic, with the United States—where 468,000 people have died—now urging everyone over the age of two to wear masks in public.

The Centers for Disease Control and Prevention (CDC) study examined fitting a cloth mask over a medical procedure mask, and also knotting the ear loops of a medical mask to improve fit. “Each modification substantially improved source control and reduced wearer exposure,” the study concluded.

“These experiments highlight the importance of good fit to maximize mask performance.” In one test, an unknotted medical mask alone blocked 42 percent of particles from a simulated cough, and the cloth mask alone blocked 44 percent.