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Even in Berkeley, where many people still wear masks vs. covid, and even on a day when you can literally see and smell the smoke... outdoor masking is still week. At first very weak, I passed nearly a dozen people, before seeing one bicyclist in some cloth mask. It got better later, though some were in surgical masks. Peak was a couple in 3M 8511s, valved cup respirators. And pushing a stroller; I deeply regret that I did not think to look at what protection they have might have provided a child.
Odor molecules are often very small, and not filtered by a particulate respirator; "rotten egg" smell is H2S, hardly bigger than a water molecules. But I guess a lot of smoke smell is carried by big particles, because there was a huge odor difference between having my mask sealed or not.
(3M 8210 today, classic white cup. KF94 inside my home, where the purifiers seem to be struggling against leakage.)
Odor molecules are often very small, and not filtered by a particulate respirator; "rotten egg" smell is H2S, hardly bigger than a water molecules. But I guess a lot of smoke smell is carried by big particles, because there was a huge odor difference between having my mask sealed or not.
(3M 8210 today, classic white cup. KF94 inside my home, where the purifiers seem to be struggling against leakage.)