Mixzeny A250 Aqua Pro 2-in-1 Humidifier Water Filter Replacement Compatible with BONECO & AIR-O-Swiss Aqua Pro 2-in-1 Ultrasonic Humidifiers (4 Cartridges) - A250-444

• 1️⃣COMPATIBILITY: Our A250 Aqua Pro cartridges are designed to be compatible with all Boneco and Air-O-Swiss Ultrasonic Humidifiers (except U7131, U7136, U7137, 7146 TravelerU50, U100 and U7138). 2️⃣FOCUS ON YOUR HEALTH: The A250 Aqua Pro humidifier replacement filters offer soft and healthy mist by eliminating bad smells and capturing minerals and irregularities from the water. The filter also reduces water hardness and also purifies water, filtering out harmful substances and removing unpleasant odors. 3️⃣LASTING LONGER: These A250 Aqua Pro replacement demineralization cartridges are made from premium quality material. They perform as excellently as OEM products. For optimum performance, replace every 6 months, which is 5x longer than conventional water filters. 4️⃣RELAX YOUR SLEEP: We are dedicated to creating a healthy home environment to help you to de-stress your mind and relax your body by adding moisture to the dry air in your home, office, baby room, and any part of the house. 5️⃣AFTER-SALES SERVICE: There are 4 x A250 Aqua Pro cartridges for humidifying in the package. If you have any questions about the humidifier Aqua Pro Filter, please contact us and we will solve the issue within 24 hours.