UH311 Holmes Water Purification Replacement Filter

Holmes ultrasonic cool mist water purification filter with Microban antimicrobial protection!

• Fits Holmes models HM400, HM450, HM455, HM460, HM460B, HM461, HM470, HM480, and HM485.

• Eliminates white dust.

• For optimum performance, replace filter at the beginning of each season or every 2 months depending on use.