How would you respond if a company said it had developed a way to make hazardous materials and wasted "disappears"

I would respond by asking for more information about their technology and the scientific processes involved in making hazardous materials and waste disappear. I would also inquire about the environmental impact of their method and whether it is approved by regulatory agencies. Additionally, I would want to know if their solution is sustainable and if it could potentially be harmful in any way. Overall, I would approach the claim with skepticism and a desire for more details before forming an opinion.