What is smog product?

Could you please elaborate on the concept of a "smog product"? Is it a specific type of product that contributes to smog pollution, or is it a term used to describe the byproducts of a certain industrial process? Additionally, are there any regulations in place to limit the production or sale of smog products, and what are the potential environmental impacts of these products? I'm curious to learn more about how these products may be contributing to air pollution and what steps can be taken to mitigate their negative effects.