- Compatible Models : The HAC504 Humidifier Wicking Filters are designed for use with various Honeywell humidifiers, including the HCM-300 Series (300T, 305T, 310T, 315T, 350, 350B, 350W), HCM-500 Series (530, 535, 535-20, 540, 550, 550-19, 551, 560), HCM-600 Series (630, 631, 632, 632TG, 635, 640BW, 645, 646, 650), HCM-700 Series (710), HCM-1000 Series (1000, 1000C, 1010), HCM-2000 Series (2000C, 2001, 2002, 2020, 2050, 2051, 2052), and HEV-312, 355. - Replacement Filter A : This filter compares to part numbers HAC-504, HAC-504AW, and HAC504V1, ensuring compatibility with your existing humidifier. - Premium Quality Material : Crafted from professional filter paper, these filters feature a honeycomb pad design that maximizes water absorption, resulting in optimal moisture output for your home. - Easy Installation : Replacing your filter is simple and hassle-free. For the best performance, it is recommended to replace the filter every 1-2 months. - Practical Applications : - Home Comfort : Maintain ideal humidity levels in your living spaces, reducing dry air that can cause discomfort and respiratory issues. - Health Benefits : Promote better air quality and alleviate symptoms of allergies and asthma by ensuring your humidifier operates effectively. - Seasonal Use : Perfect for use during winter months when indoor air tends to be dryer, helping to keep your environment comfortable. Ensure your Honeywell humidifier operates at peak performance with the HAC504 Wicking Filters, providing you and your family with the moisture needed for a healthier, more comfortable home environment.