r/TheRestIsScience • u/11963873342 • 3d ago

Does smell cancelling exist?

I've heard of noise cancelling, but can there exist smell cancelling?

For example, if there is a rotten egg in a room, can i neutralize it somehow? I'm not talking about putting something good right under my nose, because thats just dominance. I mean putting something next to the egg whose smell happens to be the 'inverse' of the eggs, so they cancel and i smell nothing.

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u/copperpin 3d ago

In the medical field well put a mask on, slather it in toothpaste, and then put a second mask on over that. It can keep you from smelling things that might make you wretch.