The noise testing standards for range hoods mainly focus on the sound quality and noise level of the product. The following is the relevant information on the range hood noise testing standards compiled based on the provided search results.
 
Noise level limit
 
According to national standards, the noise level of range hoods should not exceed 65 decibels to 68 decibels. This standard aims to ensure that range hoods do not produce excessive noise during operation, thereby protecting users' hearing health.
 
Sound quality testing
 
Sound quality testing is a more detailed evaluation method that not only considers the absolute level of noise, but also the quality of noise, namely the sound quality of noise and its psychological impact on people. Sound quality testing typically involves testing in a semi anechoic chamber environment and subjective evaluation of noise.
 
Testing environment requirements
 
When conducting noise testing, it is necessary to conduct it in a specific acoustic environment, usually a semi anechoic chamber. This environment can minimize the interference of external noise to the greatest extent possible, ensuring the accuracy of test results. During testing, there are strict regulations regarding the position, direction, and relationship with the reflective surface of the range hood.
 
Testing method
 
The testing methods include using acoustic measuring instruments, measuring environmental conditions, measuring operating conditions, etc. These instruments and conditions need to comply with relevant national standards to ensure consistency and comparability of testing. In addition, factors such as the size, acoustic characteristics, and calibration of head and torso simulators need to be considered.
 
In summary, the noise testing standards for range hoods mainly include limitations on noise levels, evaluation of sound quality, specific testing environment requirements, and detailed testing methods. These standards collectively ensure that range hoods provide good smoke exhaust without generating excessive noise interference.