How loud is a mini fridge for a bedroom or dorm?

Compressor-based units cycle on and off with an audible hum, while thermoelectric personal coolers are quieter but cool far less. Several models in this category market themselves on 'low noise,' but without independent decibel testing in our source set, the most reliable noise read comes from the volume of verified-purchase reviewers who mention quiet operation versus those reporting buzzing or rattling.