Tenna water is an organic solvent, the skin of the hands in contact with the skin will have a degreasing effect, the skin will be dry, and in severe cases, chapped. Inhalation of the water, despite its aromatic flavor, is very harmful.

Inhalation of high concentrations for a short period of time can cause irritation and tearing of the eyes and nose.

Because it is lipophilic, it is particularly susceptible to binding to nerve cells and causing nerve damage. Such as fatigue, memory loss, poor concentration, insomnia, dizziness and so on. In severe cases, it can be coma.