melt flow patteren.
AIR
Cheese will mold when is has been exposed to any type of moist air. The mold on cheese is considered harmless.
Bread gets moldy when it comes in contact with mold spores that are present in the air. Bread is a good food source for mold. Moisture paired with warm air causes the mold spores to reproduce rapidly.
There exposed to air which causes the figments in the banna to change color due to the difference of air purity
Air trapped in the brake lines. Bleed your brakes and that will solve the problem.
Overheating or air trapped in cooling system.
Mold cast petroleum
Air trapped in the heater core. Possible causes, low on coolant or bad radiator cap.
A suction Cup will trap air behind itself which causes a partial vacuum. The negative pressure of trapped air or water causes it to keep in contact with the surface it is against.
An animal make have gotten trapped in a wall if the wall smell like one. Another reason for the smell is mold which occurs when there is water damage.
Trapped heat causes a climate change.
Air in itself does not contain mold. Though it will carry the mold particles which help spread it around.