Giving a job description of a cinematographer is a bit difficult because the term cinematographer can apply to various jobs ranging from camera operator to director of photography. Most often, the term refers to the director of photography, or top cinematographer on a film, so let's focus on that.
Thermoplastic Polyolefin Elastomer (TPO (POE)). Thermoplastic polyurethanes (TPU) are a class of polyurethane plastics with many useful properties, including elasticity, transparency, and resistance to oil, grease and abrasion. Technically, they are thermoplastic elastomers consisting of linear segmented block copolymers composed of hard and soft segments.
They are gaining tremendous popularity with young people for a multitude of reasons. In short, a vaporizer pen or vape pen (a type of e-cigarette) is a nifty little device ranging in size from a standard pen to a large cigar that one can use to inhale heated propylene glycol or vegetable glycerin (the main ingredients in the E-liquid) and blow out the vapor.