Are there non-toxic or certified changing pads?

Yes. The Babyletto contour pad is Greenguard Gold certified and marketed PVC-free, and the Dream On Me advertises phthalate- and lead-free foam. Several vegan-leather pads in this category also carry OEKO-TEX certification. Parents focused on materials should look for those certifications explicitly, since marketing language like 'breathable' alone isn't a standard.