The hair dryer wind speed testing device is primarily designed for testing the wind speed of hair dryers (air cylinders) at different settings. The testing device is composed of a seamless steel pipe with a diameter of 10CM and a length of 1.5M. Both ends of the testing device are fixed to the test port using high-temperature resistant nylon material. The left side serves as the air inlet of the hair dryer, allowing for testing of products of different specifications according to different diameters. The right side features points for measuring wind volume and wind speed, which can be connected to wind speed and wind pressure devices respectively. Users can choose according to their testing needs. The wind speed testing device is commonly used for quality assessment of air cylinders and plays an important technical reference value. It is also a necessary testing method in the air cylinder industry, and is therefore adopted by various large-scale quality inspection agencies.