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On Wednesday, February 10, the CDC updated the recommendations on effective mask-wearing to include masks with multiple layers or wearing one disposable mask underneath a cloth mask.
The CDC’s recommendations also state that you should choose a mask or masks that fit snugly to your face.
The new recommendations come from new research, and experts emphasize that one well-fitted, high-quality mask like the KN95 works as well as two well-fitted cloth masks.
From healthcare workers to politicians, double-masking is the latest coronavirus trend. Healthcare workers and politicians have been seen sporting two masks, and in a press briefing on Wednesday, February 3, National Institute of Allergy and Infectious Disease (NIAID) director Anthony Fauci, M.D., said that double-masking could be a common-sense approach in mitigating the spread of COVID-19. He even added that he wears two masks in situations where he won’t be able to socially distance himself from others. But does that mean cyclists should think about wearing two masks when training?
On Wednesday, February 10, the CDC updated the recommendations on effective mask-wearing to suggest wearing a cloth mask with multiple layers or one disposable mask underneath a cloth mask. If you are wearing two masks, the second mask should push the edges of the inner mask against your face, and still allows you to breathe and see easily.
According to the CDC:
→ Do not combine two disposable masks, because they are not designed to fit tightly, so layering won’t improve the fit.
→Choose a mask with a nose wire to prevent air from leaking out the top of the mask and fit close to your face.
→Ensure the mask has a good fit. You will feel warm air coming through the front of the mask and may be able to see the mask material move in and out with each breath.
And, here’s what you need to know about double-masking as a cyclist, according to David Nieman, Dr.PH., health professor at Appalachian State University and director of the Human Performance Lab at the North Carolina Research Campus, Brian Labus, Ph.D., MPH, assistant professor in the School of Public Health at the University of Nevada Las Vegas, and Matt Ferrari Ph.D., associate professor of biology in the Eberly College of Science, and a researcher with the Center for Infectious Disease Dynamics at Penn State.
Why are people double-masking?
First and foremost—the focus is still on using high-quality masks that will protect the wearer and others, explains Ferrari. That means it’s important to find a mask with good filtering material and a proper fit. Your mask should cover your nose and mouth, and fit snugly to the face with no gaps. (Get more helpful mask-wearing tips from the CDC here.)
“Two masks might be the way to do that, but one really good mask, say a KN95, may still be better than two single-ply gaiters,” Ferrari says.
For context, an N95 respirator, which we should reserve for healthcare workers, is the U.S. standard, and the KN95 mask, which is this China standard, are both said to filter 95 percent of aerosols and protect the wearer better than a single layer fabric mask.
“What we are usually talking about with double-masking is doubling up on the fabric masks to increase filtration,” Labus says. But the caveat is, both masks need to fit properly.
Adding a less-effective fabric mask over an N95 or KN95 mask won’t provide much additional protection. However, medical professionals sometimes do this to help extend the life of the masks, as PPE has been in short supply.
When is double-masking necessary?
Wearing a well-fitting mask (or two) may be especially important for protecting others and yourself if you are in a setting where people are close together or breathing heavily, such as a gym.
“If you’re an athlete and going to be with other people indoors, I would highly recommend the double masking,” says Nieman.
Currently, the CDC suggests that you wear masks with two or more layers of washable, breathable fabric, and avoid using those intended for healthcare workers, such as N95 or surgical masks. However, opting for a KN95 is okay, because U.S. healthcare workers don’t use that mask, explains Nieman.
“It gets old saying it, but if you have the luxury of avoiding settings where you would need to double mask (indoors, poorly ventilated, crowded), then avoiding those settings is better than two, or three, or four masks,” says Ferrari.
For cyclists, this may mean avoiding a crowded gym and instead opting to ride outside where there is plenty of space for distancing or setting up a home gym space.
However, if you can’t avoid indoor settings with other individuals (say, for work or to care for others) then double masking may provide the extra protection to reduce risk in high-density indoor settings.
What is the best way to double-mask?
“As with a single mask, it’s about having a good fit to your face,” explains Labus. Ensure that your mask or masks cover from above your nose to below your chin, and that air is not escaping around the sides.
“In addition to the extra filtration provided by the second mask, it can also allow the mask to fit better on your face, covering any gaps from the first mask,” Labus says.
But two bad masks are not necessarily better than one good one. In fact, the healthcare industry has shown that one high-quality, well-fitted mask can be very effective, says Ferrari. And, leakage tends to be a problem in masks, so even if you’re wearing two masks, if they don’t fit well, they won’t be effective at protecting others, says Nieman.
What is the best mask to wear while working out?
That all depends on what the masks are made of. Masks like an N95 or KN95 are designed to filter out much smaller particles than a cloth mask and require more effort to breathe through. So even if you are just wearing a single high-filtration mask, it’s likely not going to work to wear during intense exercise, because when you sweat, breathing will become more difficult.
It also depends on what type of exercise you are doing. If you’re weight lifting and won’t be getting too sweaty or need to breathe at a rapid rate, such as doing intervals on a trainer or indoor cycling bike, a KN95 and cloth mask or two cloth masks may work just fine, says Nieman. But, once you start to sweat and breathe harder, that’s when it can get tricky.
Nieman recommends finding a mask that is at least double-ply with tightly woven fabric or one that is specially made for exercising, such as the Under Armour Sportsmask, which is used in his lab when tests are being done.
“Try to focus on workouts and activities where the mask isn’t the limiting factor. Outdoors and distanced is better for everyone,” says Ferrari. This might mean getting creative with your workouts if you live in a snowy area, or a great time to break out your fat bike and hit some snowy trails.
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The bottom line: Remember, the CDC has not yet changed their recommendations and still recommends a single fabric mask that’s at least two layers. While some people are starting to wear two, it is still okay to wear a single multi-layer mask, says Labus. That second mask can provide some extra protection, but wearing any mask is much, much better than not wearing one at all.
“If you’ll be near others, or out [riding] with friends, wear a mask. If you have to do an indoor workout with others in the gym make sure you’re masked up with the best filtering, best fitting mask(s) you’ve got,” says Ferrari.
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