Scientists now say they know the simplest material for DIY face masks 科学家现在说,他们知道DIY面罩的最简单材料

Scientists now say they know the simplest material for DIY face masks 科学家现在说,他们知道DIY面罩的最简单材料

Scientists now say they know the simplest material for DIY face masks.


The coronavirus pandemic has prompted a heated debate over the efficacy of DIY masks made from materials commonly found reception . Now, a replacement study published within the journal Physics of Fluids on Tuesday claims to possess found the optimal homemade mask design.


The researchers compared four simple mask styles, which they believe are the choices that most people can choose: tie a turban to the nose and mouth; fold loose handkerchiefs; tapered commercial masks; and sewn by two layers of quilted cloth Masks.


Much to the delight of the many an American grandmother, the quilt fabric performed best as a protective shield against respiratory droplets.


Assistant Professor and research author Siddhartha Verma of Florida Atlantic University said in a statement: “Although there have been some previous studies on the effectiveness of medical-grade equipment, we do not have much information about the most easily available cloth-based coverings.”

佛罗里达大西洋大学的助教,研究作者Siddhartha Verma在一份声明中说:“虽然之前有一些关于医疗级设备有效性的研究,但我们对目前最容易获得的基于布料的覆盖物没有很多信息。”

The researchers used a mannequin wearing a mask as a stand-in, and used a smoke generator with a manual pump to simulate coughing and sneezing. Lasers and cameras are installed to detect and capture the “droplet” path.


Without wearing a mask, the cough droplets flew out more than 8 feet, up to 12 feet. Fly out 3 feet when wearing a headscarf; 15 inches when using a folded handkerchief; 8 inches for surgical masks.


The stitched, two-ply quilt mask, however, halted droplets after just 2 and ? inches.


Why quilted? The study suggests that the masks made with quilting fabric fit faces better than loosely tied material. Plus, sturdy two-ply material gives a mask another layer of protection, other studies have shown.


They also acknowledged that a better thread count wasn’t commensurate with success: The bandanna had the very best thread count of other cloths used, yet was least effective.