Product review (1 stars): The filter is smaller than the HWF62 that it replaces ...
The filter is smaller than the HWF62 that it replaces. As a result, the air flow in the humidifier apparently goes around the filter and does not prduce the same moisture content as a real HWF62 paper filter. It does not use the water in the humidifier as rapidly as the paper filter and a hygrometer attached to the top of the humidifier indicates a lower moisture content. It will be returned!