DUALITY DESIGN

Electric air deodorizing apparatus; Electric air driers; Air filtering installations; Air humidifying apparatus; Air purifying apparatus and machines; Air-conditioning apparatus for industrial purposes; Air-conditioning apparatus; Central air conditioning installations for industrial use; Boilers for heating installations, other than parts of non-electric prime movers or engines; water cooling installations, namely, chiller units; Air cooling apparatus; De-humidifiers; Electric air deodorizing apparatus, not for personal use; Filters for air conditioning; Gas water heaters; Floor heating apparatus; Heating boilers; Hot water heating installations; air conditioners; Water heaters