HVAC stands for Heating, Ventilation and Air Conditioning. It is a general term for indoor environmental comfort, which creates indoor air quality (air change per hour, CFM, temperature and humidity).
When it comes to clean rooms, HVAC means a lot more than comfort. The cleanroom HVAC controls the temperature and the humidity to your appropriate levels of precision, similar to standard HVAC. In addition to comfort, cleanroom HVACs differentiate themselves from conventional systems with their increased air supply, airflow patterns, use of high efficiency filters and room pressurisation. The increased air supply brings more air changes per hour with new HEPA filtered air circulating into the cleanroom many times per hour.
Clean room HVAC designs involve knowledge of regulations, cleanliness level guidelines, airflow, room pressurisation, temperature control, humidity control and accounting of activities taking place inside.
