A process and apparatus for cleaning and disinfection of textiles and the air from viruses, bacteria and spores, and also for purifying from dust, pollen, odors, etc. in which the employment of water and various other cleaning agents and disinfectants as well is not required includes a lock or chamberin which living beings are able to stay, and piece-goods and textiles, etc. are able to be treated as well. Therein, airborne aerosols (droplets, particles, dust) as well as aerosols and microbes, respectively, adhering to the clothing or body and to the product, respectively, are to be treated. The basic principle shall also be applicable to rooms (e.g. waiting rooms) or stables and under cleanroom conditions as well. Various aspects of the invention include plasma generation, producing an ion current from the plasma, ozone generation and activation, sterilization, oxidation and decomposition of gaseous components, and separation of microbes and aerosols and decomposition thereof.