Using your 'Never Trust an Atom' wall tapestry is easy. You can hang it indoors on your wall to decorate your room or use it outdoors to add a special touch. When it gets dirty, just throw it in the washing machine. Set the machine to a gentle cycle with cold water and use mild detergent. After washing, tumble dry it on low heat. Make sure not to use hot water or strong detergents as they might damage the tapestry's colors and fabric. Also, avoid high - heat drying to keep the tapestry in good condition for a long time.