Air should not have a taste.
@Soreth All air has a taste. We just don't notice them much until they're objectionable.
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@Jssra I am always surprised after I use my p100 mask at work. It's a good fit, light, no scents to speak of (not solventproof, of course): until I take it off, after whatever I've been doing has ventilated (usually smoke).
I'm always struck by how much the shop reeks - of *dust*. A smell I rarely notice unless I stop smelling it long enough to stop being noseblind to it.
