Work in the nicely-ventilated region: Ink fumes may be dangerous when inhaled, so ensure you have correct air flow when drawing. Open windows or work in a home with good airflow to minimize exposure to fumes. Acrylic ink is designed by mixing acrylic pigments with an acrylic polymer emulsion. https://howtodrawwithinkpens10997.smblogsites.com/34873110/how-to-draw-with-ink-pens-no-further-a-mystery