Meltblown Fabric Certification & Testing

Meltblown fabric is the core material of face masks, serving as the filter layer that blocks bacteria and prevents the spread of pathogens.

Made primarily from polypropylene, meltblown fabric features fibers as fine as 1 to 5 microns. With its high porosity, fluffy structure, and excellent wrinkle resistance, the ultra-fine fibers provide a unique capillary structure. This enhances the number and surface area of fibers per unit, resulting in exceptional filtration, shielding, thermal insulation, and oil absorption capabilities.

If you plan to manufacture face masks, it is essential to test the meltblown fabric before purchasing. China JJR Laboratory offers particle filtration efficiency testing for meltblown fabric, giving you a preliminary quality assessment.

Common Testing Items for Meltblown Fabric:

 Resistance testing

 Filtration efficiency testing

 Microbiological testing

NaCl and Oil-Based Filtration Efficiency Tests

1. Chinese Civil Standard GB/T 32610-2016 (at 85 L/min airflow):

 Level I: ≥99% (NaCl), ≥99% (oil)

 Level II: ≥95% (NaCl), ≥95% (oil)

 Level III: ≥90% (NaCl), ≥80% (oil)

2. Chinese Standard KN95 GB 2626-2019 (at 85 L/min):

 KN90: ≥90.0% (NaCl), not applicable for oil

 KN95: ≥95.0% (NaCl)

 KN100: ≥99.97% (NaCl)

 PN90: not applicable for NaCl, ≥90.0% (oil)

 PN95: ≥95.0% (oil)

 PN100: ≥99.97% (oil)

3. Chinese Medical Surgical Standard YY 0469-2011:

 NaCl aerosol filtration efficiency: ≥30%

4. European Standard EN149 (at 95 L/min airflow):

 FFP1: ≥80% (NaCl and oil)

 FFP2: ≥94% (NaCl and oil)

 FFP3: ≥99% (NaCl and oil)

Breathing Resistance Tests

1. Chinese Civil Standard GB/T 32610-2016 (at 85 L/min):

 Inhalation resistance: ≤175 Pa

 Exhalation resistance: ≤145 Pa

2. Chinese Standard KN95 GB 2626-2019 (at 85 L/min):

 Inhalation resistance: ≤210 Pa

 Exhalation resistance: ≤210 Pa

3. European Standard EN149:

 FFP1: ≤60 Pa (inhalation at 30 L/min), ≤210 Pa (95 L/min), ≤300 Pa (160 L/min)

 FFP2: ≤70 Pa (30 L/min), ≤240 Pa (95 L/min), ≤300 Pa (160 L/min)

 FFP3: ≤100 Pa (30 L/min), ≤300 Pa (95 L/min and 160 L/min)