Air filtering installations; Air filters for air conditioners in vehicle passenger compartments; Air filters for domestic use; Air filters for industrial installations; Air handlers; Air purification units; Air purifying apparatus; Air purifying apparatus and machines; Electric room deodorizing units; Fibrous filtering media for general industrial use in the purification of air and industrial fluids; Filter cartridges for industrial dust collection systems for use in pulse-jet cleaning; Filters and filtering devices for air and gas conditioning; Filters for air conditioning; Filters for air extractor hoods; Filters, heaters and pumps sold in combination for use in swimming pools; Gas purification machines; HEPA filters for household use; Humidifiers for household purposes; Industrial apparatus using air for drying and cleaning components in the electronics, semiconductor, circuit board, pharmaceutical, medical, and food and beverage industries; Marine sewage holding tank vent filters; Mechanized livestock waterers; Power-operated vaporizers for household purposes; Sewage purification installations; Ventilation fan accessories, namely, grilles; Ventilation units for commercial food preparation and food serving