A vape pen, short for vaporizer pen, is a portable electronic device designed for inhaling vaporized substances, typically nicotine or cannabis products. Resembling a traditional pen in size and shape, it consists of a battery, heating element, and a cartridge or tank filled with e-liquid or concentrate. When activated, the heating element vaporizes the substance, producing an aerosol that is inhaled. Vape pens gained popularity as an alternative to traditional smoking, offering a potentially less harmful method of consuming substances.