Hello Besnier! What is the space involving the litter box plus the cats? The truth is the Litter Robot tends to make noise but is not that noisy either. My cat bought utilized to that sounds and he or she appears to know the litter box is cleaning cleaned :-) https://petskyonline-onlinestrore.blogspot.com/2025/07/petkit-purobot-ultra-premier-auto.html