Decoding the care label: what laundry symbols mean
A care label is a compact set of instructions. Once you know the five symbol families and the order they appear in, almost any label becomes readable without a chart.
The five families, always in the same order
Standardised care labels under ISO 3758 and the ASTM system place symbols in a fixed sequence. Reading them left to right gives a complete handling routine.
- Wash — a tub of water.
- Bleach — a triangle.
- Dry — a square.
- Iron — an iron outline.
- Professional care — a circle.
The wash tub
The tub shows whether and how to wash with water. A number inside indicates the maximum water temperature in degrees Celsius; dots are an alternative scale where more dots mean a higher allowed temperature. A hand in the tub means hand wash only. Bars beneath the tub call for gentler mechanical action: one bar for a permanent-press cycle, two for a delicate cycle.
A tub crossed out means do not wash with water at all. That item needs the professional-care route described further down.
The bleach triangle
An empty triangle allows any bleach. Two diagonal lines inside restrict you to oxygen (non-chlorine) bleach. A crossed-out triangle means no bleach of any kind. When colours are involved, the diagonal-line version is the common case.
The drying square
The square governs drying. A circle inside the square means tumble drying is allowed, with dots setting the heat level. A crossed-out square-and-circle means no tumble drying. Plain lines inside the square describe natural drying: a vertical line for line drying, a horizontal line for drying flat, and diagonal lines in the corner for drying in the shade.
| Drying symbol | Meaning |
|---|---|
| Square with a circle | Tumble dry permitted |
| Square with one centred dot | Tumble dry, low heat |
| Square with a single vertical line | Line dry |
| Square with a single horizontal line | Dry flat |
The iron
The iron outline shows whether the item can be pressed and at what heat. One dot is a low setting often used for synthetics, two dots a medium setting for wool and silk blends, and three dots a high setting for cotton and linen. A crossed-out iron means do not iron, and an iron with crossed-out steam lines means iron without steam.
The professional-care circle
The circle is for dry cleaners and professional wet cleaning. Letters inside (such as P or F) tell the professional which solvents are suitable. As a home reader, the practical takeaway is simpler: a circle usually means take it to a professional rather than treating it yourself.
If a label shows only some of the five symbols, the missing operations are generally left to judgement — but a crossed-out symbol is always a hard limit, never a suggestion.
Putting a label together
Suppose a label shows a tub with "30", a triangle with two lines, a square with a single vertical line, and a one-dot iron. Read in order, that garment wants a cold-to-warm wash, only oxygen bleach, line drying rather than the dryer, and a cool iron. The symbols replace a paragraph of text with five pictures.