The FY3435/30 Replacement Humidifier Wick Filter Element is a must-have accessory for Philips 300 and 300i series humidifiers. If you're looking for a reliable replacement to ensure your humidifier is working at its best, look no further! Made in our factory, our wick filter element is made with high-quality materials to effectively capture impurities and contaminants such as dust and bacteria as air passes through the humidifier. This filter not only helps improve the air quality but also prolongs the life of your humidifier. Upgrade your humidifier with the FY3435/30 Replacement Humidifier Wick Filter Element today!