Mould is fungal growth that can grow indoors in wet or moist areas lacking adequate ventilation. Common places for mould growth are walls, ceilings, bathroom tiles, carpets, insulation material, windows and HVAC systems. Many different types of mould exist with the potential to cause health problems such running or blocked nose, irritation of the eyes and skin. People with asthma, allergies, breathing conditions or weakened immune systems may be more sensitive to mould.
Indoor mould can also result in unpleasant odours and damage to building materials, contents and structures. Moisture control is therefore the primary way to limit mould growth. The following actions can be taken to minimise mould growth:
Eliminate the sources of moisture by washing mould off and dry completely. Scrubbing is the most important component of mould removal, as it physically removes mould spores and prevents regrowth.
Use exhaust fans or open windows (doors) when cooking, bathing, showering, using dishwasher, doing laundry, or drying clothes
Replace absorbent materials if they are contaminated by mould
Fix leaky plumbing and other building faults
Avoid conditions that encourage mould growth by using heat insulation and ventilation
More information –
Guidelines for Managing Mould and Dampness Related Public Health Risks in Buildings