BREAKING Orca calf that was trapped in B.C. lagoon for weeks swims free
An orca whale calf that has been stranded in a B.C. lagoon for weeks after her pregnant mother died swam out on her own early Friday morning.
How many times can I reuse my N95 mask?
It depends, but you should be able to use N95s and KN95s a few times.
The U.S. Centers of Disease Control and Prevention says health care workers can wear an N95 mask up to five times. But experts say how often the average person can safely wear one will vary depending on how it's used.
Using the same mask to run to the grocery store, for example, is very different than wearing it all day at work.
The amount of time a mask is worn is more important than how frequently it's worn, says Richard Flagan, who studies masks and aerosols at the California Institute of Technology.
In general, he recommends limiting the use of an N95 mask to about two or three days.
With every breath you take in an N95, particles accumulate on the mask, Flagan says. That could make it more difficult to breathe if the mask has trapped a lot of particles.
"They are degrading the performance of the mask," Flagan says.
The elastic band on the mask could also get worn out and not fit around your face as snugly. It might also get dirty or wet, especially if you're using it while exercising.
If you notice any of these changes to your mask, it's time to stop using it -- even if you've only used it a few hours. And since N95 masks can't be washed, they should be thrown away once you can no longer use them.
An orca whale calf that has been stranded in a B.C. lagoon for weeks after her pregnant mother died swam out on her own early Friday morning.
The federal minister of Crown-Indigenous relations is calling on Air Canada to 'make things right' with the national chief of the Assembly of First Nations, who said her headdress was removed from an airplane cabin during a flight this week.
Sophie Gregoire Trudeau says there is 'still so much love' between her and Prime Minister Justin Trudeau, as they navigate their post-separation relationship co-parenting their three children.
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Charlie Woods failed to advance in a U.S. Open local qualifying event Thursday, shooting a 9-over 81 at Legacy Golf & Tennis Club.
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At 6'8" and 350 pounds, there is nothing typical about UBC offensive lineman Giovanni Manu, who was born in Tonga and went to high school in Pitt Meadows.