Mould and Respiratory Health: What Seniors Need to Know

Photo source: openverse, Brian Valentine, Flickr

New Zealand’s damp climate makes homes particularly prone to mould growth, especially during the cooler months. For seniors, understanding the link between mould spores and respiratory health is an important part of staying well at home.

What Are Mould Spores?

Mould spores are tiny particles released into the air by mould as it grows and spreads. They are invisible to the naked eye and can travel easily through a home, settling on damp walls, window sills, bathrooms, and areas with poor ventilation. Once airborne, mould spores can be inhaled, which is where potential health concerns begin.

Why Seniors May Be More Sensitive

As we age, our lungs and immune systems naturally become less resilient. This means older adults may be more sensitive to airborne irritants, including mould spores, than younger people. Those with existing respiratory conditions, such as asthma or chronic obstructive pulmonary disease, may notice their symptoms are more easily triggered in a mouldy environment. Coughing, wheezing, throat irritation, and shortness of breath are commonly reported effects of prolonged exposure.

Where Mould Often Hides in NZ Homes

Mould thrives in areas with moisture and limited airflow. Bathrooms, laundries, window frames, and corners of rooms with poor insulation are common spots. Older homes, which make up a significant portion of New Zealand’s housing stock, can be particularly susceptible due to older insulation standards and ventilation systems.

Simple Steps to Reduce Exposure

Keeping indoor humidity low is one of the most effective ways to limit mould growth. Opening windows when weather allows, using extractor fans in bathrooms and kitchens, and wiping down condensation on windows can all help. Drying clothes outdoors rather than indoors, when possible, also reduces moisture in the air. Regularly checking for leaks and addressing damp patches early can prevent mould from establishing itself.

When to Seek Advice

If mould is visible or persistent musty odours are present, it may be worth seeking a professional assessment of the home. Similarly, anyone experiencing ongoing respiratory symptoms should speak with their general practitioner, particularly if symptoms worsen while at home.

Staying aware of mould spores and taking small preventative steps can make a meaningful difference to respiratory comfort and overall wellbeing for seniors across New Zealand.