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142 points gmays | 1 comments | | HN request time: 0.203s | source
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Pooge ◴[] No.44467701[source]
If I live in a polluted city, is there any facial mask that is proven to filter some—most?—of the pollution?

Let's say that moving out is not an option :)

replies(5): >>44467785 #>>44467887 #>>44467939 #>>44468340 #>>44468447 #
1. ceejayoz ◴[] No.44467785[source]
A well fitted N95, and good air filters at home.