Provided is a method for treating animals, such as livestock, by exposing the animals to an airborne suspension of finely divided mineral salts. Treatment is effected upon inspiration of the mineral salts or skin contact with the mineral salts. The animals are accommodated in a treatment chamber with a substantially sealed limited confined volume and has a pressure difference airflow means, a dispensing means for the mineral salts and dessicant(s) in the walls and on the floor of the treatment chamber. The treatment chamber is a stationary installation or adapted as a trailer to treat animals during a journey or to transport the treatment chamber to the animals location, for example, a zoo or to apiaries.
