Holmes HWF100 Humidifier Filter features Microban technology which is a built-in protection that inhibits the growth of bacteria, mold, and mildew that cause bad odors and stains.

The HWF-100 also features Arm & Hammer baking soda which naturally deodorizes the air by absorbing and eliminating odors that come from garbage, bathrooms, pets, litter boxes, smoke, and cooking.

The HWF100 Humidifier Filter is sold 3 Per Pack and fits the following Humidifier Models:

Holmes: HM630, HM729, HM4600, HM4600HD, HM6000, HM6000RC, HM6005, HM6005AD, HM6600, HM7204, HM7305, HM7305RC, HM7306, HM7808.

Bionaire: BCM645, BCM5520RC, BCM6010RC, BCM6610RC, BCM7204, BCM7204, BCM7205, BCM7207, BCM7305 and BCM7306.

Replaces Bionaire BWF-100, BWF100.

This filter is also known as the Holmes HWF-100 Wick Humidifier Filter and part number HWF100UC2.

Please note:

The HM7204 requires 2 Filters

The HM7305/7305RC requires 3 Filters

The HM630, 6000, 6000RC, 6005, and 6600 require 2 Filters

The HM4600 requires 6 Filters