Pre Wash, chemicals used are very toxic. Cutting into them creates so much lint that you breath in. Personally know of two women who worked in fabric shop that have lung cancer. Could be unrelated, but what if it's not. Our texile mills, coal mines and many other jobs had created many cases of lung aliments. Our enviroment is toxic all by itself, I try to help my own where ever I can to make it healthier.
p.s. my family thinks I worry too much. But if they warn us to wash for babies because it's toxic, what about the rest of us!