Maxbell Set of 3, Humidifier Replacement Part for Philips HU4801/HU4802/ HU4803 Filter Air Net - Anti-static, Waterproof, Acid Resistance
Series 2000 Párásító HU4803/01 | Philips
Filter for Philips HU4801 HU4802 HU4803 HU4811 HU4813 High Performance Easy Replace - AliExpress
Amazon.com - WuYan 2pcs Black Replacement Filters for Philips HU4102 Humidifier Wick Replacement Filters,Compatible with HU4801 HU4802 HU4803 Humidifier Parts