The 'No Smoking Sign' is a universally recognized symbol that indicates a designated area where smoking is prohibited. It is typically depicted as a red circle with a black bar across it, and may include a depiction of a burning cigarette. This sign is used in public places, offices, and other areas to promote health and safety by preventing the exposure to secondhand smoke.

The No Smoking Symbol is an internationally recognized icon used to indicate areas where smoking is prohibited. It is typically depicted as a red circle with a diagonal bar across the middle, symbolizing a cigarette with its mouthpiece extinguished. This symbol is designed to promote public health by discouraging smoking in places where it can affect others, such as in public buildings, restaurants, and workplaces.

A warehouse no smoking sign is a visible indicator placed in industrial and commercial storage facilities to inform workers and visitors that smoking is prohibited within the area. These signs are typically designed to be highly visible and include symbols such as a burning cigarette crossed out by a red circle, along with text warnings about the dangers of smoking in a workplace environment.

A 'restaurant no smoking sign' is a visual indicator placed in dining establishments to inform patrons that smoking is prohibited within the establishment. These signs are typically regulated by local health and safety laws, and they serve to promote a healthier environment for both employees and customers.