These 3 x Replacement Ion-Exchange Resin Filters for 3.5L Ultrasonic Humidifier will keep your humidifier running smoothly and efficiently, removing impurities from the water before it’s vaporised.

• Three-Pack: Pack of 3 replacement ceramic filters for our 3.5L Ultrasonic Humidifier.
• Breathe Clean Air: Ion-exchange resin filtration system removes impurities from the water before it is vaporised.
• Recommended: Pro Breeze recommends replacing your filter once every 500 hours or 6 months.
• Fits model #: PB-09