Qianshu Fu

Product Designer,  UI/UX Designer,
Illustrator,  Rabbit

Education: Royal College of Art-MA Design Products
Email: 2469358654@qq.com
Instagram: summerfu80
WeChat: 13520343489

Qianshu Fu

A Product & UI/UX Designer

Royal College of Art
MA Design Products

Product Design

Amethyst Garden
Earth Seed Boom
Log Party
Soft Light

Email: 2469358654@qq.com
Instagram: summerfu80
Weixin: 13520343489


A lovely public children hairdryer
WOW is a public place hair dryer for children and it should be deployed in places like water parks or children's swimming training centres. I hope it will address the issue of children's safety when using the hair dryer and add fun and patience to the process of drying children's hair.

The body of the WOW is a circular main unit, with air being drawn in through the air inlets on left side and blown out through a large chamber in the middle. At the same time it is possible to adjust the blowing direction (up and down, left and right) using a pivot. Children can interact with it using the oval interactive screen below.

Scene of Use

Explosive View

UI Design

During the blow-drying process, children can interact with the little WOW on the screen to know their hair drying process (lasting 5 minutes), during which they can adjust the temperature and wind by sliding the sliders on the screen. When the child moves out of the catching range of the sensor in the hairdryer, the little WOW will remind him to stand closer.

Why a Children Hair Dryer for Public Place?

According to my findings at some water parks and children's swimming training centres, many parents choose to crowd the changing rooms to blow their children's hair, causing much congestion and inconvenience due to the unsafety and discomfort associated with children using hair dryers on their own.

I has summarised the problems children have when using existing public hair dryers through small illustrations based on observations.

Most of the pain points for children when operating the hair dryer independently come from their own limited ability to operate it and their lack of patience. Therefore my design simplify potentially dangerous and inconvenient operations for children with a product-smart approach and engage them with fun interactive elements for simple operations that last until the end of the blow dry.

Optimised user flow 

Based on existing usage pain points I envisaged an optimised process for children using a hairdryer alone and came up with my design idea based on this process

Design Ideation


Ergonomic analysis

Based on ergonomic data queries and calculations for children aged 4—12, I have given a recommendation for the installation height of the hairdryer as shown in the diagram below. Ensure that children can see the screen clearly when using the hairdryer (the angle between the screen and the person's direct line of sight is less than 30 degrees). Based on analytical geometry calculations, I also recommend a tilt angle of fewer than 62 degrees to the left and right of the hairdryer.


The model is completed with 3D printing technology, with the rotating motor, servo and Arduino program. The pictures show the assembling process, the installation order is from bottom to top, fixing the bottom servo (to control horizontal rotation) first, then fixing the rotating motor (fan) and servo (to control vertical rotation) on both sides, and finally fixing the main unit in the middle of the bracket on both sides with the ball swivel. Model can blow a breeze. Further research is required to achieve full functionality

After Painting