ventilation systems

Potential contaminants in the gym
In addition to pollution from exercise equipment, gym ventilation systems can unintentionally draw in pollutants from outside sources, according to researchers.
The world's first self-cooling building
The Eastgate Center in Harare, Zimbabwe is always kept at 27 degrees thanks to a completely natural ventilation and cooling system based on termites.
Why can stir fry a dish that can be harmful to health?
According to scientists, stir-frying a mixed dish can be harmful to health because it contaminates the indoor environment, causing danger if inhaled.