Servicing many of Melbourne’s largest organisations, government buildings and institutions, Oz Cleaning Supplies is your one-stop-shop for cleaning products and supplies. Our products range from washroom supplies, to commercial chemicals, through to industrial cleaning equipment.servicing many of Melbourne’s largest organisations, government buildings and institutions, Oz Cleaning Supplies is your one-stop-shop for cleaning products and supplies. Our products range from washroom supplies, to commercial chemicals, through to industrial cleaning equipment.