Final answer:
To calculate the required noise attenuation in a commercial laundry, subtract the standard noise level from the actual level; in this case, it's 95 dB(A) minus 88 dB(A), which equals 7 dB(A).
Step-by-step explanation:
The question is about calculating the required noise attenuation in a commercial laundry environment. If the actual noise level is 95 dB(A) and the standard noise level is 88 dB(A), then the required noise attenuation can be found by subtracting the standard level from the actual level. Therefore, the required noise attenuation is 95 dB(A) - 88 dB(A) = 7 dB(A).
Based on several government agencies and health-related professional associations recommendations, the exposure should not exceed 85 dB for 8-hour daily exposures in the absence of hearing protection. Therefore, the actual level of 95 dB(A) is significantly higher than the recommended level, indicating a greater need for noise attenuation or hearing protection.