Encara no tenim significats per a "use nontoxic".
1A Bluesign material is one that uses nontoxic chemicals and processes in its creation.
2The jail, they explained between smiles, used nontoxic supplies.
3Kanzius RF therapy is noninvasive, and uses nontoxic radio waves combined with gold or carbon nanoparticles, which have a long history of medical use.