Durable materials and housing: waterproof enclosure with corrosion-resistant properties provides stable air pressure output and long-term reliability. Near-silent operation: optimized airflow technology delivers almost silent performance, under 30 dB, for peaceful night-time conditions. Efficient performance: optimized air discharge with vibration-damping technology provides quiet operation and high durability, suitable for freshwater and marine aquariums. Even oxygen distribution: professional oxygen distribution technology ensures even supply of dissolved oxygen throughout the entire aquarium. Use scenarios: - Freshwater and saltwater tanks where quiet operation is important, including bedrooms or living spaces. - Tanks with high bioload or densely stocked setups that require consistent, uniform oxygenation. - Long-term installations or multi-tank systems where durability and stable performance reduce maintenance.