Chlorine gas It is stored and transported in liquefied form in barrels or bottles and is dosed using special dispensers. For safety reasons dosing is carried out by maintaining the principle of full or partial vacuum (negative pressure installation) in the indirect chlorination process (production of chlorinated water). The disadvantage of this disinfection method is the risk of gas leakage - therefore it is necessary to install a gas neutralization system and maintain a high regime for the transport and storage of chlorine cylinders and the need to meet the appropriate health and safety regulations.

The advantage of chlorine gas is low purchase cost and low installation costs.