1Proper ventilation is essential in industrial settings to prevent the buildup of toxic fumes.
2Was the ventilation system in the new office building designed with energy efficiency in mind?
3The lack of ventilation in the old apartment made it feel stuffy and uncomfortable.
4Regular maintenance of the ventilation system can help to reduce the risk of airborne diseases.
5The architect emphasized the importance of natural ventilation in the design of the eco-friendly house.