California urges double masking to prevent COVID spread as Texas relaxes mask rules
4 years ago

California urges double masking to prevent COVID spread as Texas relaxes mask rules

LA Times  

Two masks are better than one for protecting wearers from the coronavirus and its various mutations, according to the CDC. In new guidance released Thursday by the California Department of Public Health, officials said double masking “is an effective way to improve fit and filtration.” “A close-fitting cloth mask can be worn on top of a surgical/disposable mask to improve the seal of the mask to the face,” the advisory says. Its takeaways are limited by the nature of the experiments, which “were conducted with one type of medical procedure mask and one type of cloth mask” and “did not include any other combinations of masks, such as cloth over cloth, medical procedure mask over medical procedure mask, or medical procedure mask over cloth.” Still, securing additional protection remains an important consideration, officials say, especially as potentially more contagious coronavirus variants continue to circulate across the country. “Innovative efforts to improve the fit of cloth and medical procedure masks to enhance their performance merit attention.” Double masking is not the only way to achieve enhanced protection. The report found that knotting the ear loops and tucking in the extra material of a medical procedure mask provided beefed-up protection as well, and health officials noted that using mask-fitter devices “or placing a sleeve made of sheer nylon hosiery material around the neck and pulling it up over either a cloth or medical procedure mask” also could afford additional benefit.

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