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tonyflair2002
Lv 4
tonyflair2002 asked in Business & FinancePersonal Finance · 3 months ago

FACE MASKS.  What does BFE 95% mean?

On a pack of face masks I see  BFE 95%.   What does it mean.  Is it a safety rating .

or whatever ?    THANKS if you can help.

4 Answers

Relevance
  • StephenWeinstein
    Lv 7
    3 months ago

    Bacterial Filtration Efficiency.  It tells you how well it works at stopping bacteria.  It does not tell you how effective it is against COVID-19, which is caused by a virus.

  • ?
    Lv 7
    3 months ago

    Bacterial Filtration Efficiency (BFE) of 95%. It is not a mask standard (N95 or N99 for example are mask standards). 

    N95s filter 95% of all particles, and have a BFE of 99%. 

  • y
    Lv 7
    3 months ago

    never have I seen BFE, what country?

  • Anonymous
    3 months ago

    Nothing.   It's trying to make you think it's simmiliar to 3M N95 masks.

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