Function inside a well-ventilated spot: Ink fumes is usually harmful when inhaled, so make sure you have correct ventilation although drawing. Open windows or operate inside a space with very good airflow to minimize publicity to fumes. You can use other speciality pens, like calligraphy pens, for line drawing. https://quillpenarttutorial55320.p2blogs.com/33304642/how-to-draw-with-ink-pens-an-overview