- Negative ion output: Pay attention to the negative ion concentration: A higher negative ion output can better neutralize the positive charge on the hair, reduce static electricity, and make the hair smoother and smoother. Generally speaking, hair dryers with a negative ion concentration of more than 10 million will have better effects. For example, some high-end negative ion hair dryers can release high concentrations of negative ions, keeping the hair moisturized and shiny after drying.
- Temperature and wind speed adjustment:
- Multi-speed temperature adjustment: It is best to choose a hair dryer with at least three speeds of temperature adjustment (cold air, constant temperature, hot air). Cold air can be used for styling; the constant temperature can maintain a relatively stable temperature to prevent hair from being damaged by excessive temperature; the hot air is suitable for drying hair quickly. For example, you can use the cold air or constant temperature in summer and the hot air in winter.
- Multi-speed wind adjustment: Different wind speeds can meet different hair drying needs. For example, you can use a higher wind speed when blowing the roots of your hair, and a lower wind speed when blowing the ends of your hair, which can better protect your hair. Some high-end hair dryers also have an intelligent wind speed adjustment function that can automatically adjust the wind speed according to the humidity of your hair.
- Nozzle type:
- Concentrator nozzle: This nozzle can concentrate the airflow to make the wind stronger. It is suitable for straightening hair or styling partial hair. It can quickly dry hair and create a smooth effect.
- Diffuser nozzle: The airflow of the diffuser nozzle is more dispersed. It is suitable for blowing curly hair. It can help maintain the shape of curly hair and increase the fluffiness of hair.
- Other special nozzles: Some hair dryers are also equipped with some special nozzles, such as soft nozzles and anti-flying nozzles. The soft nozzle can produce a softer airflow and reduce damage to the hair; the anti-flying nozzle can help smooth the hair and make the hair more neat.