Toot! Air Quality Alert! Before you let one rip, mitigate the damage with this:
Laced with activated charcoal, these ingenious (but not particularly sexy) adhesive pads help neutralize even the most odoriferous of releases. Just think, no more embarrassing silent-but-deadlies midmeeting or blaming that noxious smell on the dog. They're surely a lifesaver for anyone suffering from intestinal issues ...
Older people who sit a lot in the same chair can do something simpler - put a charcoal filter on the chair cushion. You can buy small filters for cheap at a pet store.