... mechanically, thermally or chemically. They are flat, porous sheets that are made directly from separate fibers or from molten ... non-toxic-- Excellent property of air throughApplication--(10~40gsm ) for medical/hygiene such as cap,mask,gown-- (15~70gsm) ... resisting,non-poisonous,good in ventilatory, no harm for human body8) Use for agriculturer, nonwoven bag ,garments, shoes,home decorations, ...