Question: what are the international washing symbols?
Answer: Washing symbol. Wash at or below 30 °C (USA, 1 dot, ●) Wash at or below 40 °C (USA, 2 dots, ●●) Wash at or below 50 °C (USA, 3 dots, ●●●) Wash at or below 60 °C (USA, 4 dots, ●●●●) Hand wash. Do not wash.