Guidance for transparent medical mask technical specifications: Technical requirements for manufacturers

To claim that the mask is a transparent medical mask, the manufacturer must be able to:

The following table summarizes the ASTM F2100 and EN 14683 requirements for medical masks (source: Buy and Sell website).

Disposable surgical masks: Specifications for filtering face pieces (surgical, procedural, and medical)
Test Typical Canada/US
ASTM F2100
EN 14683
Level 1 Level 2 Level 3 Type IIR
Bacterial filtration efficiency, % ≥95 ≥98 ≥98 ≥98
Differential pressure mm H20/cm2 (Pa/cm2) <5.0 <6.0 <6.0 <5.0
Submicron particulate filtration efficiency at 0.1 micron, % ≥95 ≥98 ≥98 Not required
Splash resistance/synthetic blood resistance, mmHG 80 120 160 120 (16.0kPa)
Flame spread Class 1 Class 1 Class 1 N/A
Microbial cleanliness (cfu/g) N/A N/A N/A <30
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