Although both sound booths and anechoic chambers are facilities used to reduce the impact of external noise and provide a low-noise environment, there are some important differences between them, so they cannot completely replace each other.

Anechoic Chamber
Anechoic chamber is a special room whose walls, ceilings and floors are covered with sound-absorbing materials to absorb sound and reduce reflections. This design makes the anechoic chamber almost echo-free and can simulate free-field acoustic conditions. Anechoic chambers are mainly used for precision acoustic measurements, such as product noise testing, acoustic material property research, etc.

Sound Booth
Anechoic chambers are mainly used to test small electroacoustic components and small electronic products. The internal space of the anechoic chamber is limited, and the maximum is generally about one cubic meter. It is only suitable for the testing of some small products and has limitations. If the product testing requirements are not high, it is a good choice.

In general, anechoic chambers are suitable for occasions that require highly accurate acoustic measurements; while anechoic chambers are more suitable for the testing needs of small shovels.
An anechoic chamber is a room, while an anechoic box is smaller and more convenient to use. Anechoic chambers are more expensive due to their special design and construction requirements; anechoic boxes are relatively cheap.

If you need to make very precise acoustic measurements, then an anechoic chamber is a better choice. If you only need a small space for simple soundproof recording or testing, an anechoic box is sufficient. Which facility to use depends on your actual needs and technical specifications.