Country of origin: Taiwan Basic weight: 15gsm, 20gsm, 25gsm, 30gsm, Can be customized Width: 175mm, 225mm, Can be customized Length: 1000M, 1500M /Roll, Can be customized Color: White Black Gery Blue, Can be customized Particle Filtration Efficiency PEF: >99% Bacteria Filtration Efficiency (BFE): >99% (except 15gsm) Air exchange pressure difference (mmH2O/cm2):
