How many lavatories are there onboard each of these aircraft?

Each of the aircraft in question typically features three lavatories onboard. This design is a common standard for many regional and narrow-body jets, allowing for efficient use of space and ensuring passenger comfort during flights. Having three lavatories helps to accommodate the potential number of passengers, particularly on longer routes, and provides necessary facilities without overwhelming the available space on the aircraft. The layout and distribution of these lavatories are strategically planned to maintain accessibility and to meet operational needs during varying flight times. Understanding this configuration is essential for cabin crew and maintenance teams who ensure passenger convenience and hygiene during the flight operations.