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An old N95 mask from Cathie worked great to block ash and smoke, although it still burned my eyes, and of course with the valve, it only protected me, not others, from virions, so I didn't wear it indoors.
0907C_AlanBikingWithMask.jpg (379 Kb) (under photos/20/Random/)
By Alan Silverstein, ajs@frii.com (page updated Tue Mar 10 18:16:39 MDT 2026)