Replacement humidifier wick filter.

Fits Models
Holmes Humidifiers: HM-1645, HM-1730, HM-1745, HM-1746, HM-1750, HM-2200, HM-2220 (HWF-64)
Bionaire Humidifiers: BCM1745 (BWF-64)
Hamilton Beach Humidifiers: 05520, 05521
White Westinghouse Humidifiers: WWHM-1645

Replace every 2 months for optimal performance.

Features:

• Patented Expanded Life reinforced filter for extended life and efficiency.
• Micro-Free antimicrobial treatment helps protect HWF-64 / AC-888 wick filter from the growth and migration of mold, fungus, algae and bacteria.
• Approximate Dimensions: 6-3/4" x 6-1/2"