Yes, when you bring a new cat home you should keep your cats in separate rooms and introduce them through a closed door. Equip each room with separate bowls, beds, and litter boxes. Keep their food on either side of the same door to create a positive association to the smell and sounds of each other while they are eating, but not interacting. Every day have the cats swap rooms, this will help them get comfortable with each other’s scent. Once they are comfortable on either side of the door, you can graduate to a face-to-face introduction. If the cats seem relaxed after one week, allow them to see each other at a distance. If the cats are interested in each other, and seem comfortable, allow them to meet. Greetings should be short, sweet, and always under supervision.