Air purifying, air deodorizing, air humidifying and air filtering apparatus and installations; filters for the aforesaid apparatus and equipment; filters (parts of household installations); water filtering, water treatment, water sterilizing and water purifying apparatus; filters for drinking water; water purifying filters; humidifiers; ionization apparatus for the treatment of air or water; separators for scrubbing air; parts and fittings for the aforesaid goods, included in this class.

Anti-pollution masks for respiratory protection, not for medical purposes; protective masks; breathing masks, namely, respiratory face masks for non-medical purposes; respiratory masks, other than for artificial respiration for non-medical purposes; filters for non-medical respiratory masks; respiratory mask filters being non-medical; respirators for filtering air other than for artificial respiration; sensors and detectors¿ namely, sensors for measuring inhaled/exhaled and surrounding air, ...