點解要戴豬嘴出街？

P100棉其實得唔得

終於有似樣d嘅回覆
大部分口罩咀filter都係防入為主，出除左擋飛沫之外唔會filter到d咩
所以中了招戴咩都好，甚至其實戴唔戴都係播毒
所以點解要封關

有興趣，想要5對
http://t.me/linebusybusy

唔敢開房住

好多操口音嘅呀姐都行喎
順便練下體能

真係做到即棄嘅人應該冇朋友
我寧願DIY, 留返啲貨比朋友

巴打 唔係sold by amazon 要小心,
同埋呢個seller 30days 43% negative

出一出旺角 已經見到幾個女手足用緊

試下其他牌子啦

我覺得最唔好係吸埋D二手煙

咁當然喇，如果一早封關我諗嘅口罩都唔使搶到而家咁嘅地步。



https://multimedia.3m.com/mws/media/576136O/respiratory-protection-for-exposures-to-the-influenza-virus.pdf
p.3
It would not be acceptable for someone to wear a valved respirator if they have a are suspected/probable/confirmed case of swine flu, as they would be exhaling into the environment.
其實3m有講過的。

而我一開始已經講：武漢肺炎嘅病徵又少起初又唔明顯，有啲簡直冇病徵之後就突然即刻暈咗，可能會有好多個潛在嘅carriers。
帶豬嘴從來都唔係一個問題，問題係cool flow呢樣嘢咋。
我帶出咗呢個問題之後，就有人話我係咪姐多6200賣唔出...etc🤷🏻‍♂️

Cool flow exhaling into the environment 同其他咀/口罩exhaling into the environment 有分別？ 6200都有個exhalation valve, 有分別？

又唔講點樣消毒 淨係識得屌人唔啱同叫人自己諗 你同D藍絲廢老有乜撚嘢分別

2097邊到仲有

新填地街已經冇哂貨

邊到仲有得賣

hf52大過3200,不信自己度

6500ql都是矽膠