Is my helmet fucked?? Left under a heat lamp. Will buy a new one in Jan but is it safe to use in meantime?

https://i.redd.it/1x742kbh0v221.jpg via /r/motorcycles https://www.reddit.com/r/motorcycles/comments/a3zyzb/is_my_helmet_fucked_left_under_a_heat_lamp_will/?utm_source=ifttt