m*****d
发帖数: 13718 | 1 Respirator Recommendations
NIOSH
Up to 350 ppm:
(APF = 10) Any supplied-air respirator
Up to 875 ppm:
(APF = 25) Any supplied-air respirator operated in a continuous-flow mode
Up to 1200 ppm:
(APF = 50) Any air-purifying, full-facepiece respirator (gas mask) with a
chin-style, front- or back-mounted canister providing protection against the
compound of concern†
(APF = 50) Any self-contained breathing apparatus with a full facepiece
(APF = 50) Any supplied-air respirator with a full facepie... 阅读全帖 |
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B********e
发帖数: 310 | 4 上网做了一下research，这种N95， NIOSH-approved 的口罩是可以过滤病菌的。下面
是CDC的 National Institute for Occupational Saftey and Health的解释。我们看
到的那些口罩都是disposable 的。
http://www.cdc.gov/niosh/npptl/topics/respirators/disp_part/
NIOSH-Approved Disposable Particulate Respirators (Filtering Facepieces)
Recent CDC infection control guidance documents provide recommendations that
healthcare workers protect themselves from diseases potentially spread
through the air (such as SARS or tuberculosis) by wearing a fit tested
respir |
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S*******l
发帖数: 4637 | 8 3m 7500 series half facepiece respirator |
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发帖数: 1 | 10 我用这种mask和filter
3M Medium Half Facepiece Reusable Respirator 7502/37082(AAD), Respiratory
Protection, Medium
3M Particulate Filter P100
都在amazon上买的。 |
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