95% filtration is important if you intend to protect yourself from the Corona Virus and its variations. Strong yet comfortable straps loop around your ears. Flat-fold masks are cone-shaped when opened providing a superior facial fit that makes it easy to wear all day long. Plus, black is super cool.
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The Chinese GB 2626-2006 standard for the face masks KN95 are equivalent to EN 149:2001+A1:2009
In some circumstances, additional supplies of respirators certified under standards from other countries or jurisdictions may be available. During periods of shortages of N95 FFRs, the federal government advises that FFRs, air-purifying elastomeric respirators, and compatible filters certified under the following standards of other countries or jurisdictions will provide greater protection than surgical masks (i.e., facemasks, other than surgical N95s[3])
Respirators Approved Under Standards Used in Other Countries or Jurisdictions That Are Similar to NIOSH-Approved N95 Filtering Facepiece Respirators:
Australia: AS/NZS 1716:2012
Brazil: ABNT/NBR 13694:1996; ABNT/NBR 13697:1996; and ABNT/NBR 13698:2011
People's Republic of China: GB 2626-2006; and GB 2626-2019
European Union: EN 140-1999; EN 143-2000; and EN 149-2001
Japan: JMHLW-2000
Republic of Korea: KMOEL-2014-46; and KMOEL-2017-64
Mexico: NOM-116-2009