Is a PEVA shower curtain liner safer than PVC?

Across the reviewers we read, PEVA is widely treated as the lower-odor, PVC-free alternative. A r/BuyItForLife thread on non-toxic liners specifically notes that PEVA "doesn't off-gas or does so at very low levels like PVC" while still blocking water effectively, unlike untreated cotton or linen. PEVA is not biodegradable, but it sidesteps the chlorinated-vinyl smell that drives most return complaints.