Sandals or slip - on tennis shoes are recommended, as you'll be asked to remove them before entering places of worship. (ordinarytraveler.com)
Hired workers need to exercise caution when entering a place with dogs. (samthedogtrainer.com)
It comes with 1 virtual wall barrier so you can stop it from entering places you don't want it and an extra filter so that it's ready to go even longer. (geekwrapped.com)