I don’t know about rooms but I do know there are places that are better to pray in, like a mosque or a place of worship.

As for in the home you can pick a room, remove the distractions in it like pictures. Turn off the television and any sound that my disturb your prayer. Pets should also not be in the room. The room should be clean. Some narrations say a filthy room angels don’t enter in, a room house with dogs and music as well.