What do the dots in tumble dry symbols mean?

Dots inside the circle in a tumble dry symbol indicate heat level: one dot = low heat (approximately 55°C), two dots = medium heat (approximately 65°C), three dots = high heat (80°C+). No dots or an open inner circle indicates no heat (air fluff only). You can always use a lower heat setting than the symbol allows.

What is the difference between line dry and dry flat?

Line dry means hang the item on a line, airer, or hanger to air dry vertically. Dry flat means lay it horizontally on a flat surface. Dry flat is required for knitwear, cashmere, and other heavy fabrics that stretch permanently under their own wet weight when hung.

Can I air dry something that says tumble dry?

Yes — air drying is always gentler than tumble drying. If you prefer to air dry a tumble-dry-rated item, you can line dry or dry flat without any damage risk. The tumble dry symbol gives permission to machine dry; it is not an instruction to do so.

What does "dry in shade" mean?

Dry in shade means keep the item away from direct sunlight while drying, as UV radiation bleaches dyes over time. Dry indoors, in a covered area, or on the shaded side of a building. This is especially important for dark, vivid, and bright colours.

What does Tumble Dry No Heat mean?

Dryinglow risk

Quick Answer

The tumble dry no heat symbol (a square with a circle and no dots, or an open inner circle) means you can put the item in a dryer but only on the air-fluff or no-heat cycle. The drum tumbles the garment and circulates cool air to remove wrinkles and refresh the fabric without applying any heat that could cause shrinkage or damage.

Also known as: air fluff symbol, no heat dryer symbol, cool tumble dry, air dry dryer symbol, tumble dry cool air

Detailed explanation

The tumble dry no heat symbol (a square with a circle and an empty inner circle, or no dots) means the item can go in a tumble dryer but only with the heating element off — the "air fluff" or "air dry" setting available on most modern dryers. The drum tumbles the garment and circulates cool ambient air, which is sufficient to remove creases and refresh fabric but does not apply any heat. This is the gentlest possible dryer setting and is used for items that benefit from gentle mechanical tumbling but cannot tolerate any heat at all.

How to follow the Tumble Dry No Heat symbol:

1
Verify your dryer has a genuine "No Heat", "Air Fluff", or "Air Dry" cycle
some machines' lowest temperature setting still uses heat; check the manual if uncertain
2
Clean the lint filter before loading
3
Select the "Air Fluff" or no-heat cycle on your dryer
4
Add a dryer ball to improve air circulation and help redistribute fill in down or feather items
5
Allow significantly more drying time than a heated cycle
air-only drying typically takes 2–3 times longer
6
Remove items when fully dry or fully refreshed
air fluff can also be used for 10–15 minutes to de-crease already-dry items or freshen stored clothing

When does this symbol appear on care labels?

For items that need refreshing or de-creasing without any heat exposure
For items that have been air dried and need to be softened or fluffed
For very heat-sensitive items where even low heat is too much
For down and feather pillows and cushions (no-heat tumbling redistributes fill effectively)

Tips and Best Practices

Verify your dryer has a genuine "no heat" or "air fluff" setting — on some machines, the lowest temperature setting still uses heat
Add a dryer ball to help redistribute fill in down items and speed air circulation
This setting is slower than heated drying — allow significantly more time for items to dry fully
Air fluff is also useful for removing pet hair and lint from items that cannot go in a heated dryer

What happens if this symbol is ignored

Using any heat setting on a no-heat-only item causes the same damage as tumble drying any heat-sensitive fabric. Always verify the machine is genuinely operating without heat before loading.

Common mistakes to avoid

Assuming "low heat" and "no heat" are similar — they are fundamentally different settings; check the machine is truly on air-only
Expecting the same drying speed as a heated cycle — air fluff takes significantly longer

Common Materials

All fabricsDelicatesItems already dry

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Frequently Asked Questions

Related Drying Symbols

Tumble Dry Normal

Tumble dry at normal/high heat setting

Tumble Dry Low Heat

Tumble dry on low heat setting only (one dot)

Tumble Dry Medium Heat

Tumble dry on medium heat setting (two dots)

Tumble Dry High Heat

Tumble dry on high heat setting (three dots)

Do Not Tumble Dry

Do not use tumble dryer - air dry only

Line Dry

Hang on clothesline or drying rack to dry

Often used together

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