1. Adjustable vent cover - Made from ABS material for durable quality and longevity. 2. Custom ventilation - Airflow volume easily adjustable by turning a knob, enabling personalized ventilation. 3. Sleek and versatile design - Slim profile that is functional and aesthetically pleasing; can be used as both air inlet and air outlet, suitable for a variety of applications. 4. Easy to clean and maintain - Removable panel and black air duct design simplify cleaning and upkeep, ensuring optimal functionality. Use scenarios - In bathrooms or kitchens where humidity control and flexible ventilation are needed; can function as either inlet or outlet depending on the duct layout. - In apartments or small rooms with limited space, where a slim, unobtrusive vent cover is preferred and maintenance is straightforward. - In utility rooms, basements, or other areas requiring reliable airflow and easy cleaning to maintain performance.