HQRP® 2-pack Humidifier Wick Filter Replacement; Improves efficiency of the humidifier, traps mineral deposits from the water; Extended filter life with help of reinforced layer; Replace filter every 4-6 weeks, depending on usage and hardness of water; 2 weeks DOA replacement warranty! HQRP® Humidifier Wick Filter improves the efficiency of your humidifier by trapping mineral deposits from the water. This triple-layer humidifier filter helps control dust and dirt build-up and prevents impurities from spreading by passing air through the filter, also remove household odors. For optimum performance, humidifier filter should be replaced at the beginning of each season and then every 4-6 weeks, depending on usage and hardness of water.

Compatible with Hamilton Beach Humidifiers 05520 05521 True Air 05920 Replacement.