Does the BURST Floss contain any PFA's? July 28, 2021 17:10 Updated No, The BURST Floss does not contain any PFA's Related articles Is the BURST Floss waxed? Is the BURST Floss biodegradable? Why does the BURST Floss get stuck in my teeth sometimes? Can I buy another BURST Floss case by itself? How long is the BURST Floss Refill and how long should it last?