The five shapes on a care label always mean the same five jobs: a tub for washing, a triangle for bleach, a square for drying, an iron for ironing and a circle for professional cleaning. Marks added to the shape change the instruction. A cross through any symbol means don’t.
Washing (the tub)
Symbol
Name
In plain words
Machine wash
Fine in a normal cycle
Cold wash
About 85°F (30°C) or cooler
Warm wash
About 105°F (40°C)
Hot wash
About 120°F (50°C)
Permanent press
A cycle with a cool rinse and slower spin
Delicate
The gentlest cycle your machine has
Hand wash
Wash by hand in cool water, don’t wring
Do not wash
Not safe in water; see the circle symbols
Bleach (the triangle)
Symbol
Name
In plain words
Any bleach
Chlorine or oxygen bleach is fine
Non-chlorine bleach only
Oxygen bleach yes, chlorine bleach no
Do not bleach
No bleach of any kind
Drying (the square)
Symbol
Name
In plain words
Tumble dry
Fine in the dryer
Low heat
Lowest dryer setting
Medium heat
Normal setting
High heat
Hottest setting
No heat
Air or fluff cycle only
Do not tumble dry
Keep it out of the dryer
Line dry
Hang it on a line or rack
Drip dry
Hang it soaking wet, don’t wring or spin
Dry flat
Lay it flat so it keeps its shape
Dry in shade
Keep it out of direct sun
Ironing (the iron)
Symbol
Name
In plain words
Low
About 230°F (110°C): synthetics, acetate
Medium
About 300°F (150°C): wool, polyester blends
High
About 390°F (200°C): cotton, linen
No steam
Dry iron only
Do not iron
Heat will damage it
Professional cleaning (the circle)
Symbol
Name
In plain words
Dry clean
Take it to a cleaner
Standard solvents
A note for the cleaner about which solvent is safe
Petroleum solvent only
A gentler solvent; tell the cleaner
Professional wet clean
Cleaned in water by a professional, not at home
Do not dry clean
Solvents will damage it
Labels in the United States may use words instead of symbols, and a label lists the harshest treatment the maker tested, not the only one that works. When a label and common sense disagree, go with the gentler option.