Accuform, MFXG649VP, 6-1/2" x 12" Plastic Sign: "Carbon Dioxide Gas Can Cause Injury or Death" Use a pictorial to quickly communicate the breathing hazard in this area. Plastic (VP) Plastic combines standard, reliable performance with 92% recycled content to create a dependable, Earth-friendly material solution. Semi-flexible, impact-resistant plastic signs are ideal for standard-duty use for installation indoors and for protected, short-term outdoor applications. Get the look, feel and characteristics of non-recycled plastic signs in an environmentally friendly version.