An earplug comprising a foam composition containing a polyvinyl chloride
resin and less than about 5 wt % monomeric phthalate, based on the total
weight of the foam composition, is described. The foam composition may
include a plasticizer containing less than or equal to about 2 wt %
monomeric phthalate, based on the total weight of the plasticizer. The
earplugs have slow recovery times from 60 percent compression to 10
percent compression of about 10 to about 60 seconds.