Difference between ASTM F2100-19 and EN 14683:2019 Barrier Levels
                                                                       Fig 1.1

 

The standard specification of both ASTM F200-19 and EN 14683:2019 Barrier Levels are placed into comparison by Nelson Labs Medical Face Mask Tests and Requirements. 

Wistech Surgical Masks are EN 14683:2019 Type II and have the BFE of more than 98%, which is similar to masks that are of ASTM F200-19 Level 2 (Barrier Testing BFE). 

Quoted from Health Science Authority, " In contrast to a thin, single-layered or double-layered paper mask, a surgical mask usually consists of three layers of flat or pleated fabric. " It is also stated that an ideal surgical mask should

  • Has the manufacturer’s name printed on its packaging.
  • Has a bacterial filtration efficiency of 95% or higher.
  • Carries an expiry date on its packaging.
  • Does not contain materials that you are allergic to.
  • Provides a good fit.

Source from : 

https://www.nelsonlabs.com/testing/surgical-face-masks-and-general-use-masks-astm-f2100/

https://www.hsa.gov.sg/consumer-safety/articles/guide-to-masks-and-respirators