Dyson Airstrait heat and airflow settings

The controls at a glance

The Airstrait's controls fall into a few groups. Dyson's Amazon listing confirms the wet to dry design and the automatic airflow drop when hair is not between the arms. The full list of heat and airflow levels, and their values, is in Dyson's specifications and manual.

Wet mode vs dry mode

Wet mode is the Airstrait's main purpose. You start with towel dried hair and make slow passes until each section is dry and smooth. Dyson's heat damage claim on its listing carries a footnote limiting it to wet to dry mode, which tells you how Dyson intends the tool to be used most of the time.

Dry mode is for hair that is already dry. It is useful for second day smoothing or tidying the front. Because it works on dry hair, read Dyson's guidance on settings for this mode before using it often. For a full routine with dry hair, some people still reach for a plate iron; Dyson Airstrait vs a flat iron explains the trade offs.

Choosing heat and airflow levels

Without quoting figures, the general approach is the same as with any heat tool: start at a lower heat level and go up only if your hair is not drying or smoothing well. Fine, thin or color treated hair usually needs less heat. Thick or coarse hair may need more heat, more passes and narrower sections.

Airflow works with heat. Higher airflow dries faster but can feel harder to control on fine, flyaway hair. Lower airflow is gentler to work with on shorter or finer hair. Many people find their setting after a few sessions and then keep it.

1. 1

   Start in wet mode with a lower heat level.

2. 2

   Use a medium airflow level and sections about as wide as the arms.

3. 3

   Glide slowly. If a section stays damp after several passes, narrow the section first.

4. 4

   Raise heat one step only if narrower sections and slower passes do not help.

5. 5

   Use the cool option, if your unit has one, for a last pass to finish.

Why air temperature is not the same as plate temperature

A flat iron's temperature is the temperature of a metal or ceramic plate pressed against your hair. Typical flat iron guidance runs from about 250°F (121°C) for fine hair to about 450°F (232°C) for coarse hair, and ghd irons run at a fixed 365°F (185°C). An air straightener heats air that moves through the hair, and the hair is wet for much of the process. The numbers are measured differently, so comparing an Airstrait heat figure with a flat iron setting is not like for like.

That is also why Dyson's specs for the Airstrait should be read on their own terms. See the flat iron temperature guide for plate tools and the temperature guide tool for typical ranges.

Does the Airstrait cause heat damage?

Dyson claims no heat damage when the Airstrait is used in wet to dry mode, with that condition stated in its listing's fine print. We do not make hair health promises for any tool. Any heat styling carries some risk, and outcomes depend on your hair, how often you style and the settings you use.

Practical habits still apply: use the lowest settings that work, avoid going over the same section many times, keep the filter clean so the machine runs as designed, and follow Dyson's manual. For a general look at heat and hair, see does a flat iron damage hair.

Note.Keep the arms and air outlet away from your scalp, ears and skin, and follow the safety instructions in Dyson's manual for your model.

Specifications and where to check them

Specs such as weight, cord length, voltage, heat values and airflow values are published by Dyson on its website and in the manual. Dyson sells region specific versions of many products, so make sure you look at the specs for the model and region you own. If you plan to travel, see dual voltage explained. If you are still deciding, is the Dyson Airstrait worth it and the best hair straighteners guide can help.

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Frequently asked questions

What temperature does the Dyson Airstrait reach? Dyson publishes the heat values for each model. Check Dyson's specs for your model rather than numbers quoted on other sites.

How many heat settings does the Dyson Airstrait have? It has several heat levels, several airflow levels and wet and dry modes. The exact count and values are in Dyson's specs and manual.

Is the Airstrait cooler than a flat iron? It heats air rather than plates, so the figures are not directly comparable. Dyson's specs give its values; flat irons typically list plate temperatures.

Does the Airstrait have a cool setting? Many units include a cool or cold option for finishing. Check the manual for your model.