AIVC's Ventilation Information Paper #48.1 summarizes current knowledge on trends in building ventilation requirements and inspection in Spain. More specifically, the paper aims to cover the following national trends:

• IAQ requirements and market,

• energy requirements and market,

• inspection of ventilation systems,

• innovative systems and market, and

• impact of the COVID-19 pandemic

This paper is part of the new VIP series being developed and dealing with trends in building ventilation requirements and inspection in various countries.

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