Spraying the area will kill it and also prevent the bacteria from continuing to spread.

Sheet metal gives no place for mold or bacteria to grow while a wall cavity is nothing but food for anything that may want to grow.

Odor is generally caused by bacteria.

They manufacture UVC lights that are installed in the air handling system.These lights clean the coils of mold and bacteria, making them run as new which saves on electricity.

If they are designed right and fuctioning make sure it is being treated once a month to add the good bacteria that breaks down the waste.

They were trying to eliminate the possibility of bacteria from a previous leak under the sink.

Wash everything with bleach to kill any lingering bacteria.

But they were, humans told themselves meh, we'll prepare for any natural disasters, and then they realized mother nature doesn't care.Plague's diseases and drug resistant bacteria are also rooted in mother nature.

The calcium buildup will prematurely wear out the heater(not in your case, ancient heater that runs forever) and allows bacteria growth as well as decreased thermal capacity.

use do this full time.best is cut out all 4ftuse ppeand big activtek units kill cat urine and bacteria etc.