Washing Signs on Clothes: Settings, Products, and Timing

You bought a new sweater, flipped to the care label, and found a row of tiny symbols that look like a foreign language. You guessed, threw it in on hot, and now it fits your kid sister. Those symbols aren’t random. They’re an international standard that tells you exactly how to clean each garment without damaging it.

Washing signs on clothes are standardized symbols printed on care labels that indicate the appropriate washing method, water temperature, bleach type, drying method, and ironing settings for each garment. They were developed by the International Organization for Standardization (ISO) and are used globally.

To read washing signs on clothes, look for the washtub shape (washing), the square shape (drying), the triangle (bleaching), and the iron shape (ironing). Dots inside each symbol indicate temperature or heat level: one dot for low, two for medium, three for high. A crossed-out symbol means don’t do it.

Washing Symbols

The washtub symbol is the first and most important icon on the care label. It tells you how to wash the garment.

Symbol	Meaning	What to Do
Washtub with no lines	Normal cycle	Standard wash, any temperature shown
Washtub with one line	Permanent press	Use permanent press cycle, medium agitation
Washtub with two lines	Gentle cycle	Use delicate cycle, minimal agitation
Hand in washtub	Hand wash only	Don’t machine wash, use cold water and gentle soap
Crossed-out washtub	Do not wash	Dry clean only
Number in washtub (30, 40, 60)	Max temperature in Celsius	Don’t exceed this temperature

Temperature dots: One dot means 30°C (cold), two dots mean 40°C (warm), three dots mean 50°C (hot), four dots mean 60°C (very hot), and five dots mean 95°C (boiling).

Drying Symbols

The square symbol indicates how to dry the garment.

Symbol	Meaning	What to Do
Square with circle	Tumble dry allowed	Use dryer on appropriate heat
Square with circle, one dot	Tumble dry low	Low heat only
Square with circle, two dots	Tumble dry medium	Medium heat
Square with circle, three dots	Tumble dry high	High heat OK
Square with circle, two lines	Delicate cycle	Use delicate dryer setting
Square with curved line	Line dry	Hang on a line
Square with horizontal line	Flat dry	Lay flat to dry
Square with vertical lines	Drip dry	Hang dripping wet
Crossed-out square with circle	Do not tumble dry	Air dry only

Who should skip the dryer: Garments labeled “do not tumble dry” include silk, wool, lace, anything with elastic, and most activewear. The heat breaks down elastic fibers and shrinks natural fibers.

Bleaching Symbols

The triangle symbol tells you what bleach is safe.

Symbol	Meaning	What to Do
Empty triangle	Any bleach allowed	Chlorine or oxygen bleach OK
Triangle with two lines	Oxygen bleach only	No chlorine bleach
Crossed-out triangle	Do not bleach	No bleach of any type

Most colored garments have the oxygen-only or no-bleach symbol. Chlorine bleach will fade or destroy the dye on colored fabrics.

Ironing Symbols

The iron symbol indicates safe ironing temperature.

Symbol	Meaning	Temperature
Iron with one dot	Low heat	110°C (silk, synthetics)
Iron with two dots	Medium heat	150°C (wool, polyester)
Iron with three dots	High heat	200°C (cotton, linen)
Crossed-out iron	Do not iron	Don’t iron at all

Steam dots: A symbol with steam coming from the iron means steam ironing is allowed. A crossed-out steam symbol means don’t use steam.

Dry Cleaning Symbols

The circle symbol indicates dry cleaning instructions.

Symbol	Meaning
Empty circle	Dry clean only
Circle with letter P	Dry clean with any solvent
Circle with letter F	Dry clean with petroleum solvent only
Crossed-out circle	Do not dry clean

If you see a dry cleaning symbol without a cross, take the garment to a professional cleaner. Don’t attempt home dry cleaning methods on these items.

Products That Help You Follow Care Labels

Using the right products makes it easier to follow care label instructions:

For gentle cycle items: Use a mesh laundry bag to protect delicates from snagging. Use Tide Free & Gentle which is free of dyes and perfumes that can irritate delicate fabrics.

For hand wash items: Use a gentle detergent diluted in cold water. Don’t wring or twist. Press the water out gently and lay flat to dry.

For items that need oxygen bleach: Use OxiClean Max Force Spray for stain removal on colorfast fabrics. Test on an inconspicuous area first.

For maintaining your washer: Use affresh Washing Machine Cleaner monthly to prevent residue buildup that can affect how clean your clothes get.

FAQ

What do the washing symbols on clothes mean? A washtub means machine wash, a square means dry, a triangle means bleach, an iron means iron, and a circle means dry clean. Dots inside indicate temperature or heat level. A crossed-out symbol means don’t do it.

How do you read clothing care labels? Start with the washtub symbol for washing instructions. Check the dots or numbers for temperature. Then look at the square for drying, triangle for bleaching, and iron for ironing. Follow each symbol to avoid damaging the fabric.

What does a crossed-out washtub mean? A crossed-out washtub means do not wash the garment. These items are typically dry clean only. Don’t attempt to machine wash or hand wash them.

What does one line under a washtub mean? One line under a washtub means use the permanent press cycle, which has moderate agitation and lower spin speed. Two lines mean use the delicate or gentle cycle with minimal agitation.

What temperature do the dots on care labels represent? One dot means 30°C (cold), two dots mean 40°C (warm), three dots mean 50°C (hot), four dots mean 60°C (very hot), and five dots mean 95°C (boiling). Match the dots to your machine’s temperature settings.

Can you ignore care label symbols? You can, but you risk damaging the garment. The symbols are there because the manufacturer tested the fabric and knows what it can handle. Ignoring them can cause shrinking, fading, fabric damage, and loss of shape.

What does a crossed-out triangle on clothes mean? A crossed-out triangle means do not bleach. Don’t use chlorine bleach, oxygen bleach, or any bleaching product on the garment. Bleach can destroy the dye and weaken the fibers.

References

1. International Organization for Standardization. “ISO 3758:2012 Textile Care Symbols.” iso.org.
2. Federal Trade Commission. “Clothing and Textiles Care Labeling.” ftc.gov.
3. The Spruce. “Laundry Symbols: What They Mean.” thespruce.com.
4. Whirlpool. “Washing Machine Cycles Explained.” whirlpool.com.