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

Compatible with all Boneco and Air-O-Swiss Ultrasonic Humidifiers (except U7131, U7136, U7137, 7146 TravelerU50, U100 and U7138) Offers soft and healthy mist by eliminating bad smells and capturing minerals and irregularities from the water Reduces water hardness and purifies water, filtering out harmful substances and removing unpleasant odors Made from premium quality material and perform as excellently as OEM products Helps to add moisture to the dry air in your home, office, baby room, and any part of the house