Proper affixing of fire safety signs is crucial for ensuring they are easily visible and readable. Signs should be mounted at eye level, typically between 3 to 5 feet off the ground, in areas where they can be seen clearly from any point in the room. They should be securely attached to a durable surface, ensuring they are not easily removable. In areas with high traffic, signs may need to be reinforced to prevent damage. Additionally, signs should not be obscured by objects, such as furniture or decorations, and should be maintained regularly to ensure their visibility.