手足裝備抗沙士：防毒面具/濾罐 (型號/分析/用法/清潔全齊）
Hkudd
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依款ok 吖，有P100 棉
大家留意番，雙罐會好過單罐豬嘴，因為雙罐裝嘅棉最勁可以去到P100，7093/6035 仲要防水，清潔方便，其實清潔越方便，重用越安全，可以用更耐，單罐嘅最勁去到大概N94-N95倒，所以如果買建議買雙罐
另外N95/P95 棉文中比較小講嘅原因係要加603,502盒先用到，而依啲盒唔係密封，越多連結位就越難清潔，縫隙亦容易trap 野，用果陣要留意嘅野太多了，同埋加加埋埋都幾貴，依家要買齊亦都幾難
另外N95/P95 棉文中比較小講嘅原因係要加603,502盒先用到，而依啲盒唔係密封，越多連結位就越難清潔，縫隙亦容易trap 野，用果陣要留意嘅野太多了，同埋加加埋埋都幾貴，依家要買齊亦都幾難
巴打依款邊度有得買？
係呢個網買左5對 仲未收到貨
平均80 一對7093
油麻地？
前設︰跟據 NIOSH 測試標準
「過濾粒子大細」 P100 = N95 (0.3 μm)
「過濾粒子效率」 P100 > N95 (最低過濾效率 ≥99.97% VS ≥95%)
「過濾粒子類型」 P100 > N95 (含油性顆粒物 VS 非油性顆粒物)
結論︰P100 > N95
如果P100都隔唔到，其實N95都係隔唔到
1800系口罩表面做左防濺水處理，所以適用於醫療行業，同埋去左FDA驗，而其他系列就冇拎FDA認證
但過到N95測試，其實過濾能力就一樣，除非你係從事高風險職業，否則日常出街其實用N95都足夠
「過濾粒子大細」 P100 = N95 (0.3 μm)
「過濾粒子效率」 P100 > N95 (最低過濾效率 ≥99.97% VS ≥95%)
「過濾粒子類型」 P100 > N95 (含油性顆粒物 VS 非油性顆粒物)
結論︰P100 > N95
如果P100都隔唔到，其實N95都係隔唔到
1800系口罩表面做左防濺水處理，所以適用於醫療行業，同埋去左FDA驗，而其他系列就冇拎FDA認證
但過到N95測試，其實過濾能力就一樣，除非你係從事高風險職業，否則日常出街其實用N95都足夠
https://www.vjmedia.com.hk/articles/2014/03/14/66267
文章節錄
文章節錄
PFE（Particle Filtration Efficiency）則是顆粒過濾效率，以 3M 為例，他們會利用 0.1 μm 的微粒及 28.3 lpm 流速來測試外科手術口罩的過濾性能。而普遍來說，這項測試容許使用 0.1 – 5.0 μm 的微粒來進行的。故 PFE 達 99% 的口罩就是指口罩能阻隔 99% 的微粒！
一個具 99% PFE 的三層不織布口罩，效能是不是比 N95（即 PFE 達 95%）更強呢？答案當然不是啦！根據 NIOSH N95 的標準，測試時會採用 0.3 μm 及 85 lpm 流速來進行，而以 PFE 95% 以上的外科口罩來進行 NIOSH N95 測試的話，結果往往低於 70%。主要原因是因為過濾材質的效能，往往受空氣流通量而影響，空氣流通量愈大，過濾微粒的效能會減低。
最主要係外科口罩唔係係完全貼面，則邊會有gap, 今次武漢肺炎個傳染能力好高，基本上佢個傳播能力係貼近空氣傳染，面對咁高傳染性嘅病毒，外科口罩得唔得真係撞彩
https://healthcentricadvisors.org/wp-content/uploads/2017/04/3_MaskEnomics_Poster_2012.pdf
依個PDF話N95 = PFE 99.9%🤔
依個PDF話N95 = PFE 99.9%🤔
From 3M, 大家可以參考下
Respirators are designed to help reduce the wearer’s exposure to airborne particles. The primary purpose of a surgical facemask is to help prevent biological particles from being expelled by the wearer from going into the environment. Surgical masks are also designed to be fluid resistant to splash and splatter of blood and other infectious materials. Surgical facemasks are not necessarily designed to seal tightly to the face and therefore the potential of air leakage around the edges exists. Even those masks that appear similar to respirators have not been designed to protect the wearer from airborne hazards or tested to the same level of filtration efficiency; therefore they should not be considered an equivalent substitute to government-approved respirators.
Respirators are designed to help reduce the wearer’s exposure to airborne particles. The primary purpose of a surgical facemask is to help prevent biological particles from being expelled by the wearer from going into the environment. Surgical masks are also designed to be fluid resistant to splash and splatter of blood and other infectious materials. Surgical facemasks are not necessarily designed to seal tightly to the face and therefore the potential of air leakage around the edges exists. Even those masks that appear similar to respirators have not been designed to protect the wearer from airborne hazards or tested to the same level of filtration efficiency; therefore they should not be considered an equivalent substitute to government-approved respirators.
已經買左6200+60926
濾罐係咪買7093都ok?
濾罐係咪買7093都ok?
是的
pish
想講防毒定防菌呀?
手足有心了 推
見到digikey有賣, 請問巴打們向digikey買信唔信得過?
想買1隻7502 + 6隻7093
想買1隻7502 + 6隻7093
應該ok，我記得八月果陣聽手足講同佢地買過
請問3M FR-57 防唔防到
唔該
唔該Thanks!
篇文條友好似病毒同細菌都未識分
得，佢有埋particulate filter，不過入面個棉嘅量唔知有幾多，可以用幾耐就唔知了