[WHAT TO GET]: The ventilation diffuser is primarily made of aluminum alloy, making it sturdy, durable, safe, and resistant to deformation and rust. Its mesh surface ensures uniform air distribution, helping to block unwanted debris and particles while ensuring smooth and efficient airflow.[WHEN/WHERE TO USE]: Wall-mounted ventilation hoods are designed to improve airflow and ventilation efficiency, making them particularly suitable for ventilation systems in bathrooms, homes, and kitchens. They are also suitable for cupboards, cabinets, garages, sheds, offices, RVs, bedrooms, attics, and any other spaces requiring.[WHAT IT IS]: Outer diameter: 88mm / 3.46 inches; inner diameter: 67mm / 2.64 inches, suitable for duct opening size: 75mm / 3 inches; depth: 20.5mm / 0.81 inches. Precise dimensions ensure a tight fit.
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