Mould in HVAC Systems: Common Varieties and Where They Occur
commercial ac maintenance_H & H Commercial Services Inc. Mould growth in heating, ventilation and air conditioning systems poses health and performance risks. The presence of moisture, combined with dust and warmth, creates ideal conditions for fungal colonies. Identifying the varieties and their preferred locations helps property managers and maintenance teams to tackle contamination and maintain indoor air quality. Visual inspections highlight hidden clusters before colonies mature, preventing costly replacements. Black Mould (Stachybotrys chartarum) Stachybotrys chartarum often forms dark green or black patches around condensate pans and drip trays. This species thrives where water pools, especially when filters become clogged. Nutrient-rich dust on cooling coils supports rapid colonisation. Spore containment during maintenance prevents cross-contamination in other zones. Airborne spores can trigger respiratory issues if left unchecked. Green and Blue-Green Mould (Cl...