Bring The Noise
Sound level meters are used in different scenarios. They can be used for community noise analysis, for instance, to measure environmental noise and keep the general population safe from exposure to dangerous noise levels. It can be used in building and architecture, to determine room acoustics, reverberation, transmission loss, and sound absorption.
It can be used for industrial noise control and product noise testing, to check the noise made by machines and appliances to help manufacturers develop quieter products. But using decibel meters in an Airbnb?? That is crazy! Unless the guests organized a rock concert in the apartment, this is totally uncalled for!