3.Key Differences Between Respirators and Masks https://multimedia.3m.com/mws/media/956213O/differences-between-respirators-and-masks.pdf?fn=Respirator%20vs%20Surgical%20Mask%20flye 4.FDA Masks and N95 Respirators https://www.fda.gov/medical-devices/personal-protective-equipment-infection-control/...
BNX is a USA based manufacturer of NIOSH approved N95 mask respirators and GB2626-2019 KN95 masks.
Find USA made, high quality N95 respirators and face masks here. For every mask that we sell, we donate one to the heroic first responders we all depend on.
N95口罩其实属于呼吸器 (respirator),呼吸器是一种呼吸防护设备,在设计上相较于普通口罩来说贴合面部更加紧密,可以非常有效地过滤空气中的颗粒物。其中,N表示Not resistant to oil, 可以用于防护非油性悬浮颗粒;95的意思是过滤效率大于等于95%,表明经过仔细测试后,这种呼吸器可以阻挡至少95%的非常小的(0.3微米级别)...
https://www.slashgear.com/fda-approves-second-n95-mask-decontamination-system-for-hospitals-10616347/ 2.(文章): https://www.fda.gov/medical-devices/personal-protective-equipment-infection-control/n95-respirators-and-surgical-masks-face-masks
HALYARD* N95 Duckbill Respirator Face Masks are NIOSH approved and are designed to provide an effective facial fit as required for proper respiratory protection.
4. Loeb, M. et.al. (2009). Surgical Mask vs N95 Respirator for Preventing Influenza Among Health Care Workers. JAMA, 302(17), 1865. 5. Smith J D , Macdougall C C , Johnstone J , et al. Effectiveness of N95 respi...
“[T]he performance of the valved N95 mask is likely affected by the exhalation valve, which opens for strong outwards airflow,” the Duke scientists say. “While the valve does not compromise the protection of the wearer, it can decrease the protection of persons surrounding the wearer. In...
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N95 Respirators vs Medical Masks for Preventing Influenza Among Health Care Personnel A Randomized Clinical Trial, JAMA September 3, 2019 Volume 322, Number 9, 824-833The Respiratory Protection Effectiveness Clinical Trial (ResPECT): a clusterrandomized comparison of respirator and medical mask ...