Tear gas is developed to disperse and stick to surfaces. After the initial dispersion, the tear gas settles on all horizontal surfaces. The oily residue must be removed from all areas of the home including walls, countertops, floors, and contents. If any area is left untreated, it will continue to off-gas, causing irritation in the eyes, nose and respiratory tract.
Tear gas is fired out of a gun in a canister shaped like a small torpedo. When the canister hits a structure, it releases a fine oily mist that penetrates all areas of a room. Tear gas usually leaves pink or yellow paint on walls and other surfaces where the canisters have ruptured. Once the tear gas has penetrated into a wall, the drywall must be removed.
Even after months go by, tear gas will continue to off-gas and cause symptoms of respiratory distress as well as irritation of the eyes, nose & mouth. Tear gas is fired out of a gun similar to a shotgun and the canister itself is shaped like a small torpedo.
When the canister hits inside the structure it ruptures, releasing a fine oily mist that penetrates all areas of a room.
Fingerprint dust is made up of a black graphite powder that should not get wet.