- #33 [winning7], 20-02-29 16:06
- #32 [winning7], 20-02-29 15:57
陳醫師 仍然未明熔噴不織布層是帶靜電功能...n95 都帶靜電功能
不過買不倒口罩下, 有布口罩+不同濾料都好過重用口罩多次
片中6:17 有示範工業用 熔噴不織布靜電功能....不過我覺得佢咁整最好前後層各加防水不織布夾住 filter 共3層好d,
防水不織布有30g, 40g選...30g已很薄透氣又防水
仲有 filter層最好突出布口罩少少....細細塊咁放入去是無用的
最後修改時間: 2020-02-29 16:12:01 - #31 [catcat8888], 20-02-29 15:30我轉左布口罩,用晾乾既濕紙巾做中層,唔焗。
====
節錄:至於口罩裡面的「濾材」,陳醫師建議使用一般的「不織布」即可,包括「不織布」抹布、尿布、紗布、濕紙巾、衛生棉都可以,不過一定要用「新」的。其中陳醫師最推薦、自己也使用的是濕紙巾,但要讓溼紙巾乾燥後再塞入布口罩使用。
一般「不織布」的過濾效果雖然比不上醫療口罩使用的「熔噴不織布」,陳醫師解釋,病毒在空氣中微乎其微,要是彼此都沒有呼吸道症狀、發燒,布口罩加上濾材就很夠用了。
全文:https://supertaste.tvbs.com.tw/topic/article/321258 -
- #30 [winning7], 20-02-29 15:15布口罩如加兩層厨房紙係好焗架。 >>
oeel , 試左...好鬼焗....怪不得有d似 N95...又話 work
不過幾年可分解, 而口罩是膠 filter, 要分解 100年 - #29 [alexanderkoo], 20-02-29 14:20Only a few plastics such as PVC,teflon,are unaffected by ozone. PP in mask is not one of them. Low conc. of short duration should be ok. Just got an expired box of mask for free but having smell of naphthalene ball, barely usable so must pass ozone on it.
最後修改時間: 2020-02-29 14:24:03 - #28 [oeel], 20-02-29 13:33防水布會吾會太焗?
另外抺塵紙會吾會比厨房好?
布口罩如加兩層厨房紙係好焗架。
我住呢頭都開始爆,個幾月前己買吾到口罩。
最後修改時間: 2020-02-29 13:35:13 - #27 [winning7], 20-02-28 12:35
呢度講, 情願用2層廚紙入自制防水布口罩都好過重用口罩
其實窮人買唔倒口罩用廚房紙好,仲環保D
豬嘴防倒毒,但自私可噴飛沫出黎影響其他
最後修改時間: 2020-02-28 12:41:41 - #26 [alexanderkoo], 20-02-28 11:43Kwong suggested that reusable (except nano-filter replacement, only prototype)or re-using mask was not feasible but only in his realm of knowledge, also based on surgical mask technology.There are a few brands in the market having certifications. Of course, long term wearing, soiling and hence, life span is still unknown due to lack of aging test. Only trust the design. Test can be done by drawing air in a wind tunnel until filter clogs,yet so many variables. However, it won't break down few hours after the design life, only less breathable.
- #25 [bankguy], 20-02-28 11:30[#24] But I think mask supply will continue to be a big problem taking note of the current outbreak in Italy, South Korea, Iran and Japan. Demand has increased sharply and still rising.
TVB news just reported that in New York, a box of 50 surgical mask is selling at USD25, whilst normally is only USD4.
最後修改時間: 2020-02-28 11:43:22 - #24 [alexanderkoo], 20-02-28 11:24Kwong said uv was not suitable for disinfection due to formation of micro-particles. Nor alcohol/silver solution. I will check ozone gas. Anyway, mask supply has been increasing, though at $100-150/box. From SE Asia having low infection and mihk.
- #23 [winning7], 20-02-27 08:24
- #22 [bankguy], 20-02-27 07:30
睇返 [#16] 條 link 死咗,搵過另一條,段片一樣。
- #21 [alexanderkoo], 20-02-26 08:37#18 Only refers to surgical mask of old technology. Reusable mask is of cutting edge technology of N99 and certification from NIOSH and Nelson labs., overcoming the so-called electrostatic charge and disinfection issues. Of course, there are MIC bootlegs. Got to be careful in choice.
Viewing re-usable mask from surgical mask principle with extrapolation and imagination is dangerous. Also narrowing down the choice. - #20 [nmw], 20-02-25 18:51多謝師兄資料!
咁咁換走個 acrylic box 轉用蒸魚既不鏽鋼托架。
至於口罩,如果只落一下街,配戴少於兩個鐘以內,先會「激活」一次^^ - #19 [shektau6], 20-02-24 09:33@16, thx for sharing very informative
- #18 [winning7], 20-02-24 08:25#16 正解....
好多人成日仲以為中間濾層纖維好密可以擋病毒....查實病毒比濾層仲要細好多好多....
全靠永久性靜電功能去吸住佢喳....若無左面層防水層先擋左大部份飛沫+病毒, ....中層跟本一定失手...
纖維表面被病毒覆蓋飽和後, 或殺病毒後, 死左的病毒屍不會消失...但病毒屍令靜電功能減少(好似清潔衣服上貓毛的貓毛轆咁, 當滿哂貓毛時就會失去粘力).....靜電功能消失病毒就自出自入
所以中間濾層靜電功能濾芯是無可能重用重洗的....反而UV口罩消毒箱 , 若果口罩使用量是多次而無濕, 使用時數未足飽和的4-8小時.......多次使用後再放UV口罩消毒....咁又可能得喎....因未到飽和期 (例如落街超市罝野 1小時, 處理得好的UV口罩消毒, 咁又真可以用好多次, 但必須4-8小時飽和期內, 仲要無高危的飛沫噴中)
理解左個靜電吸住病毒原理, 就唔會比人呃....咩納米層可以重洗廿次, 六十次....一陣又賣到貴貴咁....用虛假資訊發國難財....
_________________________________________________________________________________________
【武漢肺炎】蒸煮重用20次?上海研「最耐用」口罩 K Kwong:老點嘅!
https://hk.appledaily.com/china/20200223/ZVGE3ZSOEB4SBHFZGOBQSK5ZXI/
報道指,在薄膜不破損的情況下,口罩的過濾性能可以保持200小時,洗一洗、煮一煮,重用口罩不是夢,以一天佩戴10小時計,這個口罩可循環使用20次;預料廠房本周每天可生產10萬個口罩;下周則預計可達日產30萬個或以上。口罩價格未定。
至於世間是否真有如此神物?K Kwong打了個比喻:「你依家有條牛仔褲,被滴咗滴碳粉墨水,碳粉入咗牛仔褲,你用任何方法都洗唔甩。」他續說:「中國大陸講嗰啲吹水嘢係咩呢?口罩無錯係可能過濾到,過濾嘅嘢喺個口罩裏面,你用咩方法去搞佢,佢都唔會走返出嚟;如果有啲嘢走咗入去,好容易走返出來,咪即係冇用。」
K Kwong以一句總結:「依家嘅科技做唔到,佢有嘅話,老點嘅。」
唉!~~~
內地網民意見:
沙與沫:價格是關鍵啊!
歪歪:趕緊生產!
QinY:希望能盡快用上,點讚!
最後修改時間: 2020-02-24 08:37:54 - #17 [alexanderkoo], 20-02-24 08:20Disinfection is fine as long as designed life of 8 hrs not exceeded, otherwise clogging.
- #16 [bankguy], 20-02-24 01:36
- #14 [shektau6], 20-02-24 00:24
- #13 [呀金], 20-02-24 00:17照UV或加熱消毒都有一個前提, 就是該口罩用的總小時不長, 例如每日外出買東西只用一兩小時, 不想用一次就丟棄.
- 下一頁 (1 of 2)
- 返回 ...
紙樣 download
https://drive.google.com/drive/folders/1MVJY4mwtFCFEMFlf3zx3yg_dJpbD4pNG
最後修改時間: 2020-02-29 16:11:11