Hi Sherralynne
I know there used to be training available in NZ, for Occupational Nurses at least. You could look on the HASANZ register perhaps, and ask one of the practitoners? https://register.hasanz.org.nz/search/SearchForm?Search=Hearing+Test&Locations%5B%5D=0&EmploymentStatus%5B%5D=Consultant&EmploymentStatus%5B%5D=Employee&seed=455375&action_results=Search#search-results

Hello Janet - Allergy New Zealnd have great resources and can help with this - see here:
http://www.allergy.org.nz/Education+Sector.html

They work with schools and may be able to help with setting up an action plan.

I'd add a plug to get a good Occupational Health Nurse involved - who can work with you at the ground level and escalate to the Occupational Health Physician as needed.
Check the Nurse is up to date on their Spirometry (lung function testing) training. HASANZ register or word of mouth referral.

Hi John

see here - http://www.legislation.govt.nz/regulation/public/2016/0013/latest/DLM6727606.html?search=qs_act%40bill%40regulation%40deemedreg_health+monitoring_resel_25_h&p=1

From the Health and Safety at Work (General Risk and Workplace Management) Regulations 2016, Section 42.

kind regards
Kim