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Table 1 Mask models donated to major academic medical centers in Boston during the COVID-19 pandemic and their corresponding regulatory designation

From: Assessing the filtration efficiency and regulatory status of N95s and nontraditional filtering face-piece respirators available during the COVID-19 pandemic

N95 - NIOSH Approved
 Honeywell H901 N95 Particulate Respirator
 3M 1860 N95 Particulate Respiratorc
 3M 1860S N95 Particulate Respiratorc
 3M 1870+ N95 Particulate Respirator and Surgical Mask
 3M 8210V Particulate Respirator N95
 3M 8211 Particulate Respirator N95
 3M 8214 N95 Particulate Respirator
 3M 8511 N95 Particulate Respirator
 3M 8511 N95 Particulate Respirator COOL FLOW
 3M 9210/37021 N95 Particulate Respiratorc
 3M Aura 9211+/37193 Particulate Respirator N95
 3M N95 Drywall Sanding Respirator
 3M Particulate Respirator N95 07048
 3M Particulate Respirator 8000 N95
 3M 9502+ Particulate Respirator N95
 3M Particulate Respirator N95 9211/37022
 Rizhao 3Q SanQi RIZSQ100Sb N95c
 AlphaProTech N95 Particulate Respirator Positive Facial Lock
 San Huei SH9550 N95c
 Emerald Particulate Respirator N95
 Gerson 1730 N95 Disposable Particulate Respiratorc
 Gerson 1740 Disposable Particulate Respirator N95
 Gerson 2735 Particulate Respirator N95
 Halyard Fluidshield 3 N95 Particulate Filter Respirator and Surgical Mask
 HDX N95 Respirator Mask Contour Fit
 Jackson R10 Particulate Respirator Dual Valves N95
 Kimberly-Clark N95 62126
 Kimberly-Clark TECNOL 46727 Fluidshield PFR95 N95 Particulate Filter Respirator
 Kimberly-Clark TECNOL 46767 WITH SAFETY SEAL Fluidshield PFR95 N95 Particulate Filter Respiratorc
 Kimberly-Clark TECNOL 46827 Fluidshield PFR95 N95 Particulate Filter Respirator: Small
 Majestic N95 Particulate Respirator 74-905
 Majestic N95 Particulate Respirator with Valve 74-906
 Milwaukee N95 Valved Respirator
 Moldex 2200 N95 Particulate Respirator
 Moldex 2300 N95
 ONE-fit N95 Healthcare Particulate Respirator and Surgical Mask
 Safety Works N95 Respirator
 SafetyPlus N95 SP8265
 VWR N95 Disposable Respirator
 3M 8200 Respirator N95
 Medicom N95
 3M 8210 & 8210 Plus Particulate Respirator N95c
 Medline NIOSH N95
 HDX N95 Respirator Mask
 3M VFLEX N95 Mask
 3M 9010 CN N95 Masks
 Aegis N95 Disposable Respirator
 Aegis N95 Disposable Respirator with Exhalation Valve
 Airtek 972 NIOSH Approved N95
 Cardinal Health N95-MLc
 Cardinal Health N95-Sc
 SAS Safety Corp Particulate Respirator N95
KN95 - Appendix A ("Authorized Imported, Non-NIOSH Approved Respirators")
 3M 9501+ KN95 Particulate Respirator
 aRUN Industrial Co N9 KN95c
 Jinan Vhold Co. VH95 KN95b c
 Powecom KN95 Protective Mask
 Aoxing KN95c
 HuaGuang Communication Disposable Face Mask KN95b c
 3M 9541 KN95 Masks
KN95 - Not on Appendix A
 ZKG 9501 KN95
 CM KN-95 White Folding Respirator, 6002A-1 KN95
 LJK KN95 Stereo Protective Mask
 Urance KN95c
 JinLiLaiSi KN-95 Medical Mask
 LanShiOrm KN95 Mask
 Hui Xin KN95 Mask
 DingHang KN95 9001
 BRI-2100 KN95 Mask
 Yuxu (雨旭) 9901 KN95c
 Yimengshan (沂蒙山) 9201 KN95c
 Energy Fortress KN95 Mask
 Graphene SNN70370B KN95c
 SNIPPET (施奈邦) SNB9501 KN95c
 Unmarked KN95 (multiple)c
FFP2- Not on Appendix A
 3M K112 FFP2c
 Guangzhou Kanglv 9501 FFP2c
Known or Suspected Counterfeita
 Burvagy Disposable Dust Mask N95 Approved
 Dasheng N95 Respirator Mask DTC3B
 Raxwell N95 Respirator RX9501P
 Da Sheng Niosh N95 Respirator Mask DTC3X
 Dasheng N95 Respirator Mask DTC3W
 NIOSH N95 Approved AirTek 9716
 Eco Solutions N95 Particulate Respirator
 3M 6100/07024 Half Facepiece Reusable Respirators
 3M 6291/07002 P100 Particulate Filters
Other Standards (P100, P95, R95, etc)
 3M 8233 N100 Particulate respirator
 Moldex 4700 N100
 Amston 1802-N99 Particulate Respirator
 3M 8293 P100 Respirator Particulate Mask
 3M 8271 P95 Respirator Particulate Mask
 3M 8247CN R95
 3M 8240 R95
 Cleanwell KF94
Not NIOSH Approved or Missing from Certified Equipment List
 SolidWork Foldable Dust Mask 9600V-N95
 3M 29211 Particulate Respirator
 3M 8102 Mask
 3M Disposable Respirator
 3M Odor Respirator
 3M Performance Filter
 3M Performance Respirator
 AOSafety Sanding Drywall Fiberglass Respirator
 Basecamp Particulate Respirator
 SAS Safety Corp Nuisance Dust Mask
 Shenzhen Health Technology N95
 ESound Med N95 Protective Mask
  1. N95 model certification was checked in the NIOSH Certified Equipment List
  2. aKnown counterfeit masks are listed on CDC website; suspected counterfeit masks were identified by guidance listed on the same website
  3. bJinan VHOLD Co LTD VH95 and HuaGuang Communication Disposable face mask were later removed from Appendix A
  4. cMask models that underwent filtration testing at academic medical center