The 3-ply paper tissue contains a middle layer impregnated with citric acid (7.51%), a common additive in detergents, and sodium lauryl sulfate (2.02%), which is found in many shampoos. According to Medical Letter consultants, sodium lauryl sulfate disrupts the lipid envelope of many viruses. Rhinoviruses, which cause a high percentage of upper respiratory infections, do not have a lipid envelope, but are sensitive to acids and disrupted by citric acid.我的comment：sodium lauryl sulfate是强表面活性剂，破坏脂质外壳，所以理论上对冠状病毒应该也有效，照这个思路，买不到的拿普通纸巾浸润soapy water晾干不就差不多？不过坏消息是，正牌产品效果可能也没那么好：
Field Studies – Virucidal tissues have been only modestly effective in preventing viral transmission and secondary infection when studied in the home. Two 6-month randomized controlled trials published together tested the effectiveness of virucidal tissues (treated with citric acid, sodium lauryl sulfate and malic acid) compared to placebo. In one study that included 186 families, use of the virucidal tissues led to a 32% reduction in secondary illness compared to placebo tissues, but only a 10% reduction compared to no tissues. The other study, which included 98 families, found that the incidence of secondary illness was 5% higher with virucidal tissues than with placebo tissue.3 During an influenza outbreak, secondary transmission in 291 families was about 10% with virucidal tissues and 14% with placebo.4
A total of 186 families were evaluable after completion of trial I, and 98 families were evaluable in trial II. The antiviral tissues were associated with 14 and 5% relative reductions in the overall rate of colds in the first and second trials, respectively. In the first study, this appeared to be due to an appropriate fall in secondary illnesses with a relative reduction in the ratio of secondary to primary illnesses of 32%. In trial II, however, the small and statistically insignificant reduction was primarily due to a drop in the rate of primary illness (which cannot be attributed to tissue efficacy), and the ratio of secondary to primary illness was actually 5% higher in the group with active tissues than in the placebo group. We conclude that when rigorously used in a study protocol, virucidal tissues may offer a modest reduction of secondary colds in the home, but for reasons currently unknown, do not have a major effect on the overall rate of colds.
Field Studies – Virucidal tissues have been only modestly effective in preventing viral transmission and secondary infection when studied in the home. Two 6-month randomized controlled trials published together tested the effectiveness of virucidal tissues (treated with citric acid, sodium lauryl sulfate and malic acid) compared to placebo. In one study that included 186 families, use of the virucidal tissues led to a 32% reduction in secondary illness compared to placebo tissues, but only a 10% reduction compared to no tissues. The other study, which included 98 families, found that the incidence of secondary illness was 5% higher with virucidal tissues than with placebo tissue.3 During an influenza outbreak, secondary transmission in 291 families was about 10% with virucidal tissues and 14% with placebo.4
https://m.medicalletter.org/article-share?a=1199b&p=tml&title=Antiviral%20KLEENEX&cannotaccesstitle=1
A total of 186 families were evaluable after completion of trial I, and 98 families were evaluable in trial II. The antiviral tissues were associated with 14 and 5% relative reductions in the overall rate of colds in the first and second trials, respectively. In the first study, this appeared to be due to an appropriate fall in secondary illnesses with a relative reduction in the ratio of secondary to primary illnesses of 32%. In trial II, however, the small and statistically insignificant reduction was primarily due to a drop in the rate of primary illness (which cannot be attributed to tissue efficacy), and the ratio of secondary to primary illness was actually 5% higher in the group with active tissues than in the placebo group. We conclude that when rigorously used in a study protocol, virucidal tissues may offer a modest reduction of secondary colds in the home, but for reasons currently unknown, do not have a major effect on the overall rate of colds.
https://www-ncbi-nlm-nih-gov.proxy.lib.umich.edu/m/pubmed/3055950/
这是上面引用到的文献3
感觉充当口罩夹心层的问题可能是不湿润的话可能表面活性剂不能充分工作，官网也是说“moisture-activated”抗病毒功能。而正规口罩过滤层是靠静电吸附病毒附着的微颗粒，不知道tissue行不行啊？
拿来擦鼻涕肯定行，说的是拿来自制口罩的话可能不太行，如果行的话，买不到这种抗病毒纸巾就普通纸巾弄点肥皂水再晾干代替？
那个不是自制口罩不防水吗，这个看来应该放外层，刚好是碰飞沫起作用杀菌，简直完美啊。
不要直接接触脸，里面再垫两层别的纸
这个思路不错，人民的智慧啊！
屁挨着地白挨的，思维要敏捷有没有
那是里面，要让它面朝病毒，先杀一轮
从外到里，一层这个抗病毒tissue，一层bounty，一层普通tissue，搞定。四小时扔掉。还有啥要改进的吗？
staples就有
应该不会是粉尘性地会离开纤维，所以吸不进肺里。ps提供一个信息，我闺蜜让国内家人寄的口罩到了，Fedex3天
买得到口罩谁还买这个，凑合着用吧，短时间用也无妨
想问一下邮费多少啊？
拿来擦鼻涕.
140多人民币，不过说是找做外贸生意的朋友借fedex accout寄的，比个人寄应该便宜不少
我只在普通口罩里放了一张这个纸就憋得慌，必须把它团成不规则才上得来气