Air cleaning apparatus; Air cleaning filters (parts of air cleaning machines or installations); Air cleaning instruments; Apparatus for cleaning filters by blowing; Filters for cleaning air; Filters for cleaning gases (parts of household or industrial installations); Flue gas cleaning apparatus

Ceiling cleaning services; Cleaning of buildings (exterior surface); Cleaning of commercial premises; Cleaning of floor surfaces; Cleaning of hospitals; Cleaning of hotels; Cleaning of industrial premises; Cleaning of offices; Cleaning of property; Cleaning of schools; Cleaning of shops; Cleaning services; Industrial cleaning services; Sanitation (cleaning services)