Tumble dry, no heat (air only)
Tumble dry with no heat. The drum just moves air. A filled dot, on US (ASTM) labels only.
What to do
Use the dryer's no-heat or air-fluff setting. The drum moves air without warming it.
What to avoid
If drying is slow, don't add heat. The filled dot requires air only.
How to spot it on a label
The drying square appears in the third position of the standard care sequence. A circle inside it identifies machine tumble drying, while lines inside it identify air drying. This ASTM mark has one solid dot centered in the circle, not a hollow heat dot.
Easy to confuse with
- Tumble dry, no heat (air only)Tumble dry, low heat
Check the mark
Inspect the center dot: no heat uses a filled dot, while low heat uses one hollow dot.
- Tumble dry, no heat (air only)Tumble dry, medium heat
Check the mark
Check both fill and count: no heat has one solid dot, while the medium or normal mark has two hollow dots.
- Tumble dry, no heat (air only)Tumble dry, high heat
Check the mark
Count and inspect the dots: no heat has one filled dot, while ASTM high heat has three hollow dots.
On a real label
Foam-backed bath mat (US label)
Read together: Wash at up to 30°C, do not bleach, tumble dry with no added heat, do not iron, and do not dry clean.
- Category
- Drying
- Appears on
- US (ASTM) labels
Related symbols
Common questions
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What does a black dot inside the dryer symbol mean?
- On an ASTM label, the single filled dot permits tumble drying with no added heat. Use the dryer's no-heat or air setting.
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Is a filled dryer dot the same as one hollow dot?
- No. A filled dot means no heat under ASTM. One hollow dot permits low heat.
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Can I use low heat for a no-heat tumble symbol?
- No. This mark permits tumbling only without added heat. Low heat is a separate hollow-dot instruction.
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Why don't international care labels show a filled dryer dot?
- ISO does not define the ASTM filled-dot no-heat symbol. There is no matching ISO glyph.