Compatible Models: Honeywell HCM300 Series: HCM300T, HCM305T, HCM305TCST, HCM310T, HCM315T, HCM350, HCM350B, HCM350W, HCM350BCST Honeywell HCM500 Series: HCM530, HCM535, HCM53520, HCM540, HCM550, HCM55019, HCM551, HCM560 Honeywell HCM600 Series: HCM630, HCM631, HCM632, HCM632TG, HCM635, HCM640BW, HCM645, HCM646, HCM650 Honeywell HEV300 Series: HEV312, HEV355 Honeywell HCM700 Series: HCM710 Honeywell HCM1000 Series: HCM1000, HCM1000C, HCM1010 Honeywell Enviracaire Series: ECM250 Honeywell HCM2000 Series: HCM2000C, HCM2001, HCM2002, HCM2020, HCM2050, HCM2051, HCM2052 Compatible with Honeywell Filter A: HAC504, HAC504AW, HAC504V1 Key Features and Benefits: Rapid Humidification: Multilayer honeycomb design maximizes moisture absorption for faster humidity output. Helps maintain humidity levels between 40% and 60%, promoting comfort and healthier air quality in your home. Durable and Effective: Made from rigid, FSCcertified absorbent filter paper that retains structure when wet and resists sagging for consistent performance. Cleaner Air: Waterabsorbing mesh filter captures minerals and impurities, preventing white dust from settling on furniture and surfaces while protecting your humidifier from buildup. Easy Maintenance: Designed for quick replacement, ensuring your humidifier continues to work efficiently and delivers moisture. Value Pack: Includes 6 replacement filters for extended use. every 23 months depending on water quality, usage, and environment to maintain performance. Material and Design: Constructed from FSCcertified rigid absorbent paper for environmental responsibility and structural integrity. Engineered for compatibility with the full range of listed Honeywell humidifiers, ensuring a fit for effective moisture delivery. Practical Applications: Winter Comfort: Combat dryness from indoor heating by adding moisture to the air, helping relieve dry skin, throat discomfort, and static electricity. Allergy Relief: Remove airborne mineral particles for cleaner breathing environments, especially beneficial for allergyprone households. Everyday Home Use: Maintain ideal humidity for better preservation of wooden furniture, musical instruments, and indoor plants. This replacement filter ensures efficient humidifier operation, cleaner indoor air, and consistent comfort, making it a practical choice for maintaining healthy humidity in your home.