Chlorine Gas Filter For a perfect dosing result Proper operation of chlorine gas dosing equipment in chlorine gas systems can be ensured only if they are protected against impurities. With the chlorine gas filter, a product is available that removes impurities such as particles and chlorine condensates from the inflowing chlorine gas. Inside the chlorine gas filter, there is a ceramic filter element, on the surface of which the impurities are deposited when the gas flows through the filter.