... air throughApplication--(10~40gsm ) for medical/hygiene such as cap,mask,gown-- (15~70gsm)agricultural covers, wall cover,-- ... inside and PE film outsideWhite PP Spunbond Nonwoven Fabric100% PP Spunbonded (PPSB) Nonwoven Fabric ,Functional (3%UV,inflaming retarding,, ... ventilatory, no harm for human body8) Use for agriculturer, nonwoven bag ,garments, shoes,home decorations, furniture, surgical ,making ...