Compatible with Bionaire humidifier models W6, W6S, W6, W7, W9, and W9S, this performance replacement filter is designed to deliver efficient, clean, and consistent humidification for your home or office. Key Features and Benefits: Precision fit for Bionaire models W6, W6S, W6, W7, W9, and W9S, ensuring easy installation and reliable operation. output interwoven filter design effectively traps and retains mineral deposits, preventing them from circulating in the air and keeping humidity clean. Sturdy metal reinforcement structure adds stability to the filter, supporting the softer and more absorbent paper material. This prevents slumping or sagging over time, even during prolonged use or when wet. Produces natural and clean moisture without creating white dust, protecting furniture, electronics, and surfaces from residue. Practical Use Scenarios: 1. Ideal for dry indoor environments during winter months, helping to relieve dry skin, throat irritation, and static electricity. 2. for maintaining humidity for delicate wood furniture, musical instruments, or houseplants. 3. Suitable for offices or bedrooms where clean, dust humidification is important for comfort and health. This filter is engineered for dependable performance, easy handling, and longlasting durability, making it a trusted choice for maintaining the efficiency and cleanliness of your humidifier.