air cleaning apparatus for household purposes; household air cleaners; air sterilizers; air sterilizing and disinfecting device, namely, air sterilizers for household purposes; filters for sterilizing air; air sterilising apparatus; air filtering installations; air purifying sterilizers; air purifiers; filters for air purifiers; air purifying apparatus and machines; air sterilizing apparatus; ionisation apparatus for the treatment of air; air filters for air cleaners; air ionizing apparatus for air cleaners; oxygen generators for cleaning air, namely, air purifying apparatus; air cleaning apparatus; air deodorizing apparatus; electric air purifiers; electric air cleaners for household purposes
Environmental Control Apparatus