PER stands for Polymer Environment Resin, an evolution from PVC.  It maintains the characters of PVC - the durability adn the flexibility and discards the toxic substances.  The most important issue is that it gives the eco-friendly responsibility to the environment and the health to human beings.  It can not only pass the 180-day-biodegradation test but also can it be recycled.  This has been awarded:

FDA
REACH
RoHs
Heavy mental
Oeko-Tex
Non-6P

Plastics have become the most convenient material in the human being's life because of the low price , light weight, superior properties and easy processing .  Yet, most plastics are very stable and would not degrade even after a long period of time , which brings in a serious issue in the environment .  The concern for a clean ENVIRONMENT becomes the main driving force behind the increasing interest in developing health & environment material.