Poistoilmalla

Poistoilmalla, often translated as exhaust air or extract air, refers to the air that is mechanically removed from a building or a specific space. This process is a fundamental component of mechanical ventilation systems, designed to maintain indoor air quality and control humidity levels. Poistoilmalla is typically drawn from areas such as kitchens, bathrooms, and utility rooms where moisture and pollutants are generated. These pollutants can include cooking fumes, steam, odors, and volatile organic compounds.

The primary purpose of removing poistoilmalla is to prevent the buildup of stale air and contaminants within an interior environment. By extracting this air, fresh outdoor air is simultaneously introduced into the building, often through an intake system, creating a continuous flow of air. This air exchange is crucial for occupant health and comfort, reducing the concentration of indoor pollutants and carbon dioxide. In many modern buildings, poistoilmalla is passed through heat recovery units before being expelled outside. These units capture a significant portion of the thermal energy from the outgoing air and transfer it to the incoming fresh air, thereby reducing the energy required for heating. This heat recovery process contributes to energy efficiency and lowers heating costs. The design and operation of poistoilmalla systems are subject to building codes and standards to ensure adequate ventilation rates and effective removal of contaminants.