The World Health Organization Classifies toner waste as class 2B carcinogen due to its potential health hazard. Toner News Mobile › Forums › Toner News Main Forums › The World Health Organization Classifies toner waste as class 2B carcinogen due to its potential health hazard. Tonernews.com, August 31, 2021. USA This topic is empty. Viewing 1 post (of 1 total) Author Posts #324088 tonerKeymaster Author August 31, 2021 at 1:10 PM Viewing 1 post (of 1 total) You must be logged in to reply to this topic. Log In Username: Password: Keep me signed in Log In