When the air conditioning (AC) is turned off in closed apartments, ventilation can occur through natural or mechanical means. Here are a few ways closed apartments can get ventilation without relying on the AC:
Windows and Doors: Opening windows and doors is a simple way to allow fresh air to enter the apartment and circulate throughout the space. Cross-ventilation can be achieved by strategically opening windows on opposite sides of the apartment to create a natural airflow.
Natural Ventilation: Many modern buildings are designed with natural ventilation in mind. They may include features such as vents, louvers, or exhaust fans that facilitate air movement even when the AC is not running. These features allow for fresh air to enter and stale air to be expelled.
Exhaust Fans: Some apartments may have exhaust fans installed in specific areas like kitchens and bathrooms. These fans help remove odors, moisture, and stale air, promoting air circulation and maintaining indoor air quality.
Ventilation Systems: Certain apartments may have dedicated ventilation systems installed. These systems are designed to bring in fresh outdoor air and expel stale indoor air. They operate independently of the AC and can provide continuous ventilation even when the cooling system is not in use.
HVAC Systems with Dedicated Ventilation: In some cases, apartments may have HVAC (Heating, Ventilation, and Air Conditioning) systems that include separate ventilation components. These systems have dedicated fans and ductwork designed to provide ventilation even when the AC is turned off.
It's important to note that the effectiveness of ventilation in closed apartments will depend on factors such as the apartment's design, insulation, and the presence of air leaks. Additionally, occupants should consider outdoor air quality, noise, and security when deciding to open windows or use natural ventilation methods.