How do HVAC systems affect indoor air quality?

HVAC systems condition and circulate air throughout a building, so they can either remove or spread contaminants. Poorly maintained units distribute dust, mould spores, VOCs and odours, while well-maintained systems filter and dilute pollutants and control humidity.

What filter should a technician choose?

The course explains the MERV scale (1–16) and HEPA filters, which capture very fine particles. Higher-rated filters clean more but restrict airflow, so the system must be compatible. UV-C lamps and activated carbon filters can supplement mechanical filtration.

How does HVAC relate to moisture and mould?

Cooling coils condense and drain moisture from the air, but dirty coils, clogged drain lines, overflowing condensate pans or oversized systems can leave excess humidity. Relative humidity above 60 per cent encourages mould, dust mites and material breakdown.

Who is this course for?

It is a free course for HVAC technicians and service professionals who want to assess, maintain and improve indoor air quality through HVAC performance. There are no prerequisites.

HVAC Systems and Indoor Air Quality: What Every Technician Should Know

Name: HVAC Systems and Indoor Air Quality: What Every Technician Should Know
Availability: InStock

HVAC systems do more than heat and cool buildings — they are central to indoor air quality (IAQ), health, and occupant comfort. This course equips technicians with knowledge to assess, maintain, and improve IAQ through HVAC performance. You'll learn to understand airflow, identif

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Course Instructor

Free

No cost

Duration

Free