Related Clues:
- Smells funny? Ours do!
- Vent emanations
- Warnings of gas leaks
- Clean-out-the-fridge warnings
- They stink
- Smells to avoid
- Locker-room emanations
- Many gases lack them
- Baking soda targets
- Ammonia and others
- Nose perceptions
- Trails for bloodhounds
- They could be represented by a cartoonist's wavy lines
- Rotting results
- Rank things