Asthma and Respiratory Foundation chief executive Letitia Harding said there hadn't been any official reports of increased respiratory problems yet, however, people with respiratory conditions should always be mindful of potential risks.
The best advice Harding could offer was to tell people with illnesses to always keep their reliever medication on hand.
"If you are experiencing worsening of your respiratory condition, or believe you may be developing symptoms, contact your GP as soon as possible to discuss your options."
On Sunday, an orange haze caused by smoke from the Australian bush fires blanketed much of New Zealand's North Island.
Scores of people were gobsmacked at the sepia-like effect the smoke had on their surroundings, with many people calling 111 for help.
Police were inundated with so many phone calls they had to remind the public what constituted an emergency.