An RCMP officer, left, wears a 3M half-face mask, which experts say should have been used during the worst of the Fort McMurray wildfire. Instead, members had N95 masks, similar to the one on the ...

Medical device manufacturer 3M says it is under pressure from the White House to stop exporting N95 masks it currently produces in the United States to other countries, including Canada.

3M Half Facepiece Reusable Respirator: available at Amazon A dependable choice at a reasonable cost, this respirator comes in a few different sizes and is ideal for people who do metal work or ...

But Brauer said the 3M half-masks offer a tighter seal when fitted correctly and can also filter out gasses as long as the proper cartridge filters are included. "The big difference with the half-face ...