- The Cleaning Equipment, Supplies and Property Support Services Exhibition – To be held at the Ellerslie Event Centre, Auckland New Zealand on 29 and 30 May 2014, Clean NZ is much more than simply educational sessions and exhibition. It is a meeting place for the industry – suppliers and distributors; building service contractors; carpet and restoration technicians; and in-house cleaning and hygiene practitioners. Clean NZ Education Two days of education as well as preshow workshops, covering hygiene in health care and hospitals, green sustainability and new technology, outdoor cleaning and BSCs will be held over the duration of the show. These sessions have been designed to attract all participants in the cleaning and hygiene industry. Approved certificates will be issued to those requiring them on request.