Gas scrubbing apparatus; sterilizers; air purifiers [for household purposes]; water ionizers [for household purposes]; electric bath-water purifying apparatus for household purpose; desiccating apparatus; air driers [dryers]; air drying apparatus; air sterilizers; air filtering installations; air purifying apparatus and machines; ionisation apparatus for the treatment of air; water sterilizers; water filtering apparatus; water softening apparatus and installations; water softening apparatus and installations; apparatus for purifying water; water purifying apparatus and machines; fumigation appliances not for medical purposes; dish disinfectant apparatus for household purposes; tap-water purifying apparatus for household purposes; electric babies' bottle disinfectant apparatus for household purposes