system
Given the following post, respond as if you're commenting on Reddit:
human
Does breathing air through a towel to stop a smell/volatilized chemical actually filter out molecules?

Often, people will counter a bad smell or other airborne chemical by covering their nose with a towel/cloth. How effective is this against the actual inhalation of the chemical? Is the smell only reduced because it is overpowered by a "smell" from the towel?
gpt
some molecules that cause the smell stick to the towel just like they stick to your hair (like after you bbq something some of the smell is stuck in your hair) 

so when you breath trough a towel some of this molecules don't reach so and you don't smell them...