Firefighters and the Military deal with some of the worst odors inhibited by NOXO Odor Defense Pro™

They include
Decaying / Gangrenous / Burnt Flesh
Have you ever accidentally singed your fingers when cooking or forgetting to extinguish a match? Then you will already know the acrid scent of burnt flesh in its most minor form. Take that smell and multiply it ten-fold and you’ll understand the true meaning of what many firefighters and rescue workers smell after a blaze. Similarly, an equally repugnant smell, is that of rotting or gangrenous flesh, both caused by bacterial infection. In addition, bed sores are known to release smells similar to that of rotten flesh.

Sewer Gas
The smell of a stagnant sewer is unmistakable in its odoriferous and cloying funk. The combined mix of waste material from a hundred or more different people, and their flushed and discarded flotsam backing up under an open-air sewage grate is a cause for gagging and watering eyes. Knowing quite well what oddities human beings will dispose of via toilet is disgusting enough, but add that to the potent combination already at hand, and you have yourself a revolting scent.

​Some of the strongest constitutions around are those of morgue attendants, members of the police force, emergency technicians, ‘corpse divers’, CSI field agents, and anyone else who repeatedly comes in contact with bloated, rotten, and mishandled corpses. The odor is formed from the release of gasses by bacteria.

Hydrogen Sulphide
This is the chemical compound with the formula H2S. This colorless, toxic, and flammable gas is responsible for the foul odor of rotten eggs. It often results from the bacterial break down of organic matter in the absence of oxygen, as is found in swamps and sewers. It also occurs in volcanic gases, natural gas and some well waters. The odor of H2S is commonly misattributed to elemental sulfur, which is, in fact, odorless.