[Afterguard]

If you can smell a fart through your mask it is ineffective.. Thus with the probable exception the typical fireman’s respirator, they are all ineffective. Easy-peasey. Just my $.02 (and yes, I do have two penny coins).

[Svartalfiar]

If you can smell a fart through your mask it is ineffective.. Thus with the probable exception the typical fireman’s respirator, they are all ineffective. Easy-peasey. Just my $.02 (and yes, I do have two penny coins).

See my post #63 above. If you have a fart mask and still smell it, you're right. But a fart is way smaller than anything most masks are designed to filter out.