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CHECK THE TAG / THE GARMENT CARE FIELD GUIDEEDITION 05 · REFERENCE SNAPSHOT 2026-11-01
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CARE MARK / TUMBLE DRYING / ISO 3758:2023

Do not tumble dry symbol.

Do not place this garment in a tumble dryer.

EXPLICIT INSTRUCTIONSOURCE-TRACEDINTERNATIONAL REFERENCE
Use this mark in the decoder
ILLUSTRATIVE CARE MARKINDEX / DO-NOT-TUMBLE-DRY
Do not tumble dry symbol: Do not place this garment in a tumble dryer.
THE MARK IS NOT A TEST RESULTCTT / 05
THE SHORT ANSWER

What does it mean?

Do not place this garment in a tumble dryer.

01 / HOW TO IDENTIFY IT

Match the shape, not just the words.

Look for a square enclosing a circle. Dots indicate dryer heat; a diagonal cross prohibits the machine tumble-drying process.

The crossed circle inside a square means the garment must not be placed in a tumble dryer. Heat, tumbling action, or both may be unsuitable.

02 / WHAT TO DO

The practical decision.

Look for a separate square with lines describing line, drip or flat drying. If no alternative drying mark appears, seek the manufacturer’s full instructions rather than guessing that a radiator or hot air is safe.

Do not skip this detail

Tumbling or dryer heat may shrink, warp, weaken or otherwise damage the garment.

03 / WHAT PEOPLE CONFUSE

One small detail changes the meaning.

Do not confuse “do not tumble dry” with “do not dry”; the first forbids the machine dryer, not all methods of drying.

04 / AFTER YOU IDENTIFY IT

Check the rest of the tag.

The washing, bleaching, drying, ironing and professional-care instructions work together. This page interprets one symbol only; a blank or unreadable mark does not grant permission for any other treatment.

Never replace the maker’s written instructions with a guess based only on material composition or appearance. Read the complete care-label method.

REFERENCE CHECK / 01 NOV 2026

The source behind this interpretation

Care marks describe permitted treatments for the finished article, not a guarantee of results. Some standards require purchase and the illustrations here are independent teaching representations. Read the evidence and licensing limits.