When a tag reads “hand-wash only,” heed the instructions. Learn when and how to hand-wash clothes in the sink and steps for drying delicate items.

Hand-washing delicate clothing can keep them looking fresh and new for a long time. But for a lot of people, the process feels like an extra chore, so they toss everything into the washing machine.

The World Health Organization has created posters to help organizations improve hand hygiene — one showing proper hand washing steps and one providing proper hand ...