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Mask Filter Tests

All STYLESEAL filters are independently tested at Nelson Labs, USA and conforms to the ASTM F2100 standard at a particle size of 0.1 microns. You can read about our different filter types here.

The filters go through a variety of tests including:

  • Particle Filtration Efficiency (PFE)
  • Bacterial Filtration Efficiency (BFE)
  • Viral Filtration Efficiency (VFE)

This is your guarantee that STYLESEAL Air Masks provide you the protection you need. All results of these tests can be found below:

 Filter Type 80S 90S 95S 99S
Particle Filtration Efficiency (PFE) >99.2% >98.3% >99.4% >99.2%
Bacterial Filtration Efficiency (BFE) >99.9% >99.9% >99.9% >99.9%
Viral Filtration Efficiency (VFE) >98.1% >98.2% >98.2% >98.2%

Particle Filtration Efficiency (PFE)

80S 90S
styleseal particle filter test nelson labs certificate 80s
styleseal particle filter test nelson labs certificate 90s
95S 99S
styleseal particle filter test nelson labs certificate 95s styleseal particle filter test nelson labs certificate 99s
               

Bacterial & Viral Filtration Efficiency (BFE, VFE)

80S 90S
styleseal anti-viral filter test nelson labs certificate 80s styleseal anti-viral filter test nelson labs certificate 90s
95S 99S
styleseal anti-bacterial filter test nelson labs certificate 95s styleseal anti-bacterial filter test nelson labs certificate 99s