The layers and tight weave make it harder for virus-carrying particles to pass through the material.

这种层状结构和紧密的编织使得携带病毒的颗粒很难穿透这种材料。

Step 3 Wear tight weaves for your outer garment, which should be water-repellent. Make sure your coat has a hood, and wear a knit cap underneath.

穿一件编织紧致的防水外衣。确保外套有兜帽，下面再戴一顶针织帽。