Natural ventilation is the ventilation of a building with outside air without using fans or other mechanical systems. It can be via operable windows, louvers, or trickle vents when spaces are small and the architecture permits.Health and safety. Indoor air quality (IAQ).
Ventilation-systems in apartment buildings are typically laid out in 3 main ways: natural-ventilation, mechanical-ventilation and hybrid-ventilation.Mechanical-ventilation improves indoor air quality by controlling humidity and outside airflow.

l Improved indoor air quality without energy penalties. l Support for green building certifications. As energy costs continue to rise, investing in an efficient ERV system becomes both an economic and environmental decision.

In a large apartment building, ventilation isnt just about comfort, its about preventing mold, controlling humidity, and reducing exposure to indoor pollutants. A C4-based system is built to keep air exchange steady from one apartment to the next...

Ventilation is a driver of both 1) indoor air quality (IAQ) considerations in residential buildings and 2) energy use in residential buildings (conditioning ventilation air and fan power requirements).
Slim, durable ventilation grille designed specifically for residential ventilation systems.Fresh air changes everything. Case Studies. Discover how Systemair's solutions are transforming indoor and outdoor environments all over the world.
Indoor air quality problems are more common in the buildings with insufficient ventilation. It is evident that there is need to increase the outdoor air supply in the indoor of buildings