What rules did the elevator shaft next to the bedroom violate?

According to the relevant regulations, the elevator shaft shall not be arranged next to the bedroom. If it is necessary to arrange the elevator shaft next to the bedroom, structural measures of sound insulation and vibration reduction should be taken. Because the elevator will produce serious low-frequency noise during operation, long-term impact may damage the health of internal organs. When the noise exceeds 80 decibels during the day and 35 decibels at night, it will have obvious adverse effects on the human body. If the elevator shaft is separated from the bedroom by a wall, the noise generated at night can reach up to 42 decibels, which seriously interferes with rest, and some people will have adverse reactions such as headache, palpitation and brain swelling.