- Make sure this fits by entering your model number.
- Provides water mist without minerals or limescale
- Easy cartridge replacement or easy replacement of the granules every 2 – 3 months
- Can be refilled with top-up granules A7533. Compatible products : U650, 7135, 7142, 7144, 7145, 7147, U200, U700
- Use with all BONECO & AIR-O-SWISS ultrasonic humidifiers except the U7146 Travel & U300 series
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When properly installed and maintained, the 7531 Demineralization Cartridge effectively prevents the release of minerals in the air. Replace or refill the cartridge every 2 – 3 months or more frequently in areas with hard water.