The Orfield anechoic chamber is rated as the quietest anechoic chamber in the world. It is said that no one can stay in it for more than 45 minutes. We have no way of knowing its background noise value. With the technical level at that time, it should not be possible to achieve an absolutely silent environment. The more famous anechoic chamber in China is the acoustic laboratory of Nanjing University, and many people visit it every year. So what are the anechoic chamber brands in China?

There are no anechoic chamber brands that are well-known to the public in China, because anechoic chambers are a very unpopular industry, and many people don’t even know what it does, so there is no concept of a famous anechoic chamber brand. To be honest, the anechoic chamber of Jinghuan Environmental Protection is a well-known brand in the industry. Jinghuan Environmental Protection has a history of 16 years. The founder, Mr. Huang Xingjun, graduated from the architectural acoustics engineering design and management major of Tsinghua University. Later, he founded Sateri Acoustic Research (Hong Kong) Co., Ltd. In 2012, he established Jinghuan Environmental Protection Equipment Co., Ltd. in Dongguan. In 2018, he established Aifer Acoustic Engineering Equipment Co., Ltd. in Zhejiang, which is also a leader in the anechoic chamber industry.

In October 2005, the background noise value of Sateri (before the name change) anechoic chamber reached 16.4dB, leading domestic peers and in line with international standards; in March 2012, the background noise value of the Nidec full anechoic chamber project of Jinghuan Environmental Protection (after the name change) was as low as 8dB, which was at the global leading level; in August 2016, it won the bid for the super-large ultra-quiet anechoic chamber of Tsinghua University, and in 2018, the background noise value of the semi-anechoic chamber project reached 2dB. Maybe because the anechoic chambers of Jinghuan Environmental Protection are mostly used in enterprises, many people are not aware of the existence of anechoic chambers of Jinghuan Environmental Protection.