General description Replacement humidifier filter designed for Philips models HU4801, HU4803, HU4811, and others. This filter ensures hygienic humidification with up to 99% less bacteria emissions compared to ultrasonic devices. Regular replacement of the filter guarantees efficient and consistent humidification performance, while effectively filtering bacteria and limescale from the water before it is released into the air. Technical specifications Compatible models: Philips HU4801, HU4801/01, HU4803, HU4803/01, HU4811, HU4811/10, HU4813, HU4813/10 Tested product Long service life Bulk product Compatibility and accessories Replacement air filter for Philips humidifier models: HU4813/10, HU4813, HU4102/01