IFJ_06-2020_protectiveapp_filmstrip Ken Norberg December 21, 2020 5 Views NatureWorks’ Ingeo PLA biopolymer is a core component of a new spunbond filter media for N95 facemasks. Photos courtesy of NatureWorks NatureWorks’ Ingeo PLA biopolymer is a core component of the new spunbond filter media. Photo courtesy of NatureWorks