37 Installation, repair and maintenance of dishwashing, glass washing, dish drying and glass drying machines; installation, repair and maintenance of dispensing machines; repair and maintenance of cleaning, polishing and sanitation apparatus and machinery; rental of cleaning equipment; and consultation services in the aforesaid fields; consultation services in the fields of janitorial services, hygiene, cleaning, polishing, deodorizing, disinfecting and sanitation services in commercial, industrial and institutional settings, floor care services, kitchen hygiene, cleaning and warewashing services, washroom hygiene and cleaning services, and laundry and linen ironing services