Air ventilators, also known as fans or ventilation systems, are devices that circulate and purify the air in a room or building. They help:
1. Improve air quality
2. Reduce stuffiness
3. Regulate temperature
4. Remove pollutants and allergens
Types include:
1. Ceiling fans
2. Box fans
3. Portable air purifiers
4. HVAC systems
They're essential for maintaining a comfortable and healthy indoor environment!