SH> Have to argue with you on this one. Picked up a passenger the other day
SH> who told me he shit himself due to food poison. He was also puking
SH> his guts out in the seat beside me into a vomit bag. Even with the
SH> window open the smell was getting to me, I put a mask on and I would
SH> say it cut the smell by 99%. We have the paper 4 layer ones at work.
SH> 
SH> So the masks DO IN FACT protect you from smelling a fart.

I must have a sensitive nose, because I can still smell people's cologne, and
bad breath if they are close enough to me - right through the paper masks that
they used at my work.

The only thing I have ever worn that stopped all smells are those 3M Auto Paint
Respirators.  I have used those in the past when putting undercoating on
vehicles or painting them.  Auto paint is extremely strong smelling and can't be
good to breethe.
 The issue with those things is I feel like I can't get enough air in them, so I
have to constantly take them off.  

I have also used the n95 masks when doing massive drywall sanding, which is a
must.  That white dust goes everywhere and no one wants that in their
respiritory system.

- Mark

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