Four Household Items That Make the Perfect Filter for Your Cloth Face Mask
到目前为止，我们都知道穿某种类型的cloth face mask when outdoorsto help预防冠状病毒的传播(the masksblock potentially virus-causing dropletsthat are released into the air when a person coughs, sneezes, talks, or even breathes). However, you might not know thatadding a filterto yourhomemade maskcan make it even more effective. Filters are especially important if your mask is made of thin or loosely woven fabric,like those used for scarves and T-shirts, which might not offer enough protection against the virus. In fact,密苏里州科技大学学报found that masks made from a bandana with no filter only blocked about 10-20% particles, compared to an N95 mask that blocks more than 90%.
Four Items You Can Use as a Face Mask Filter
The good news is you can make a good filter from a variety of household materials. After cutting the material to size, it's best to place the filterbetween layers of fabric，因为一些材料可能脱落的小纤维可能有害吸气。您可以将过滤器折叠在面料褶皱之间或在面具内部创建口袋以将其固定到位。确保过滤器很容易拆卸，因此每次使用后都可以替换它。
Typically used in furnaces, air conditioners, and一些空气净化器，根据research from Missouri University of Science and Technology.
Coffee filters were also found在捕获粒子时非常有效，但低透气性可能是面部面具的问题。然而，一些袋装咖啡过滤器可能允许足够的气流用作自制掩模过滤器。
Apart from placing a filter inside the mask, another option is to add an additional layer of filtration on top. A东北大学最近的研究found that layering a nylon stocking over a face mask can make it up to 50% more effective at blocking airborne particles. By creating a tighter seal around the face, the nylon layer helps ensure particles can't slip in around loose edges of the mask.
Must-Know Tips to Boost Your Face Mask's Safety
重要的是您的自制面罩过滤器允许气流。如果没有，粒子可以绕过过滤器而不是通过它。要测试过滤器的透气性，请保持材料tightly against your faceto make sure you can breathe through it before using it for a face mask.
接下来，确保面具适合您的脸部正确。如果您无权访问过滤器，则可以通过选择具有多个结构层的设计来最大限度地提高保护。一般来说，具有更严格的织物的织物，例如绗缝机的棉织物或高螺纹计数床单more effective at blocking particles.To check a fabric's effectiveness, hold the material up to a light. If light shines through, you might want to choose a more tightly woven fabric.
如果您确定在自制面具中添加过滤器，remember to remove and discard在公共场合佩戴它后的过滤器wash your face mask frequently. Regardless of what your mask is made of,some protection is better than nothing, but practicingsocial distancingremains your most effective line of defense against coronavirus.