Fill clear water on the clean water tank, such as distilled water, purified water, or cooled boiled tap water. For your safety, avoid using regular tap water, spring water, or any contaminated water.

Open and pour one saline packet into the clean water tank.

Put the base unit back together. Just press it down a little until you hear that cluck-cluck sound.

Turn on the power button.

Then long press the momentary button to start, and keep holding it.

Don't panic. Just relax.

Make sure to keep your mouth open, and you just need to breathe naturally through your mouth.

When the water on clean water tank is empty. The cycle is done.