Acted as photocatalysis film, titanium oxide is widely applied to sterilization, anticancer, water and air disposal et al.

The other toxic materials are well enclosed and should pose little risk to users, but they could be released into the air or waterways during manufacture or disposal.

The EPA says that it is during the cleaning, purification, and waste disposal phases of dry cleaning that these hazardous toxins can get into our air, water, and soil.