[13cm]

Set of 5 stick filters for tabletop and small ultrasonic humidifiers.
Cotton swab filter measures 13.0 x 0.8 cm or 15.0 x 0.8 cm
You can easily cut it with scissors, so please cut it to the size of the filter you are using.
Filters are consumables, especially the humidifier filter is prone to breeding bacteria, so replace them regularly for a pleasant and comfortable life.
Can also be used for aroma diffusers of similar filters.