What important feature should operable windows possess?

Operable windows are crucial in promoting both health and well-being in building occupants, and they should allow for ventilation as a key feature. Properly functioning operable windows enable users to control their environment, allowing fresh air to enter while facilitating air exchange within a space. This is essential for improving indoor air quality, which can lead to reduced levels of indoor pollutants and a more comfortable atmosphere.

Ventilation via operable windows offers various benefits, including the potential to cool down a space naturally and regulate humidity levels, contributing to a healthier living and working environment. This aligns with Fitwel principles, which emphasize design strategies that enhance occupant health and comfort.

Other options, such as decorative-only windows or permanently sealed windows, do not contribute positively to occupant health. Windows that block all external views fail to provide visual access to the outdoors, which is important for mental well-being and connection to the environment. Hence, the ability of operable windows to allow for ventilation is a fundamental aspect of their design.