Air filtering installations; Air purifiers; Air purifying apparatus and machines; Dehumidifiers; Dehumidifiers for household purposes; Drying apparatus for use in heating, ventilation systems, air conditioning systems and refrigeration systems; Electric fans; Electric hair dryers; Flexible pipes being parts of sink plumbing installations; Industrial dehumidifiers; Industrial scrubbers for removing particulate matter from the air during industrial processing, namely, impingement scrubbers, ven...