Urea and consequently DEF is not really extremely harmful to human beings. Urea might be irritating to eyes, skin and also the respiratory tract but not existence threatening. Higher concentrations within the blood may be damaging to individuals having said that ingestion of small concentrations of urea ,supplied an enough https://cruzelrxb.nico-wiki.com/7922741/ag_products_things_to_know_before_you_buy