IndoAsian’s Zosta- The powerful Exhaust fans have been specially designed with a sleek plastic cabinet and angled blades to maximise airflow with minimum noise. They comply with stringent RoHS standards, ensuring that the proportion of hazardous or difficult to dispose of substances is limited to the maximum allowed. That saves guard environment and humans. The back of the unit is supported with flaps that shuts automatically when the fan is not in use to keep mosquitos or insects out. Available in 3 sizes, there’s a fan that perfectly complements every living space.