11 Devices and apparatus, namely, sterilizers, disinfection apparatus, and air purifiers, and systems comprised of air purifiers and filters for air purifiers, and disinfection and sterilization apparatus and ultraviolet sanitizing lights, all for the sterilisation, disinfection, purification and decontamination of air, rooms, furniture, objects, clothing and surfaces; devices and apparatus, namely, electric air sanitizing unit, and systems comprised of electric air sanitizing units and ultraviolet sanitizing lights, all to neutralize viruses, bacteria and germs; devices and apparatus, namely, air purifiers and filters for air purifiers, and systems comprised of air purifiers and filters for air purifiers, all to purify the air from viruses, bacteria and germs; devices and apparatus, namely, ozone generators for air purification and sanitizing, and systems comprised of sanitizing apparatus for air using ultraviolet light sand ozone sanitization, all to create protective screens from viruses, bacteria and germs; sterilising apparatus for medical use; sterilization, disinfection and decontamination equipment, namely, air sterilizers, water sterilizers, water disinfecting apparatus, electric air sanitizing unit, ultraviolet light sanitizing apparatus for surfaces