1. Do I have to use purified water?

It is not required to use purified water, but buildup of hard-mineral deposits in the water tank could be reduced by using only distilled, mineral-free water and frequent cleaning.

2. What is a carbon filter? How often should I clean?

The Carbon filter is a black, sponge-like material which is for the air intake. This filter may attract large quantities of dust or other debris from the surrounding air after continued use, depending on your local environment.  We recommend doing a basic cleaning every week.

3. Does this humidifier have a night light option?

Yes, under working status, long press and hold the button for 2 seconds to turn the tank light  on or off.

4. What size room is most optimal for use?
TOSOT 4L Top Fill Humidifier can cover 250-450 sq. ft.

5. What is the mist height of this unit?

The mist of TOSOT humidifier could cover about 1.5 ft - 2ft distance.

Other questions?

Please refer to the FAQ page here for more details or contact us at support@tosotdirect.com