What is medical mask?

Medical mask is a loose-fitting, disposable mask that is considered as medical device. It is fluid resistant and designed to protect wearers from large droplets such as blood, splashes, or sprats of bodily or other hazardous fluids. Wearer’s mouth and nose will be covered to create a barrier for minimizing the direct transmission of infective agents.

Medical mask is mainly categorized into two types: non-sterile and sterile. The former is intended for use by patients or other wearers, the latter is intended for use by healthcare professionals in medical settings. Both types of medical mask are subject to strict regulations in different countries before being made commercially available.

Regulatory compliance requirements in different markets

Market-Specific Regulatory Compliance

CountryPrimary RegulationPerformance StandardClassificationRequirement
Australia Therapeutic Goods (Medical Devices) Regulations 2002  AS 4381:2015 Level 1 BFE≥ 95%
Level 2  BFE ≥ 98% 
Level 3  BFE ≥ 98% 
Brazil  Resolution RDC 185/2001  ABNT NBR 15052:2004  BFE ≥ 95% and PFE ≥ 98%  
Canada  SOR/98-282  ASTM F2100-19  Level 1  BFE ≥ 95% 
Level 2  BFE ≥ 98% and PFE ≥ 98% 
Level 3  BFE ≥ 98% and PFE ≥ 98% 
China  Regulations for the Supervision and Administration of Medical Devices  YY/T 0969-2013  Single-use Medical Face Mask  BFE ≥ 95% 
YY 0469-2011  Surgical Mask  BFE ≥ 95% and PFE≥ 30% 
Technical requirements for protective face mask for medical use  GB 19083-2010  Class 1  PFE ≥ 95% 
    Class 2  PFE ≥ 99% 
    Class 3  PFE ≥ 99.97% 
Technical specification of daily protective mask  GB/T 32610-2016  Class 1  Salt medium ≥ 99% and Oil medium ≥ 99% 
    Class 2  Salt medium ≥ 95% and Oil medium ≥ 95% 
    Class 3  Salt medium ≥ 90% and Oil medium ≥ 80% 
Technical specification of children mask  GB/T 38880-2020  Protective mask  PFE ≥ 95% 
      Hygiene mask  PFE ≥ 90% and BFE ≥ 95% 
EU  Directive 93/42/EEC  EN 14683-2019+AC:2019  Type I  BFE ≥ 95% 
Type II  BFE ≥ 98% 
Type IIR  BFE ≥ 98% 
India  IS 16289:2014  Class 1  BFE ≥ 95% 
Class 2  BFE ≥ 98% 
Class 3  BFE ≥ 98% and PFE ≥ 98% 
United States  21 CFR Subchapter H  ASTM F2100-19  Level 1  BFE ≥ 95% 
Level 2  BFE ≥ 98% and PFE ≥ 98% 
Level 3  BFE ≥ 98% and PFE ≥ 98% 
FDA 21 CFR 878.4040  ASTM F1862  Level 1  Level 1: 80  
minimum pressure in mm Hg 
 
Level 2  Level 2: 120 
minimum pressure in mm Hg 
 
Level 3  Level 3: 160 
minimum pressure in mm Hg 
FDA 21 CFR 878.4040  16 CFR 1610  Class 1  Class 1 (Lower class with label) 

Key test parameters

While there are many testing parameters for measuring the quality and performance attributes of medical mask, below are key testing parameters to take note of:

Test ParameterTest Objective   Measurement  
Bacterial Filtration Efficiency (BFE)  Resistance of the mask against bacterial agents   Results are reported as percentage efficiency rating. The higher the number in this test indicates better barrier efficiency 
Particle Filtration Efficiency (PFE)  Resistance of the mask against particles larger than 1 micron   Results are reported as percentage efficiency rating. The higher the number in this test indicates better filtration efficiency* 
Fluid Resistance Testing  Resistance of the mask against liquid splashes such as blood or other bodily fluids  Results are reported as pressure with or without any fluid penetration observed at the back side of mask. The higher value without penetration indicates better fluid resistance.  
Breathability Testing – Differential Pressure   Easiness of the wearer to breath comfortably in the mask  Lower breathing resistance indicates a better level of comfort for the wearer 
Microbial Cleanliness  Total number of viable micro-organism on the mask  Results are reported in units of micro-organism, lower the value higher level of cleanliness 

*higher filtration efficiency usually indicates a greater difficulty for air to pass through the mask. In this case, breathability testing is recommended.

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