How to Reuse N95, KN95, and Other Disposable Masks

The Centers for Disease Control and Prevention recently updated its mask recommendations to align with what experts and many other people have long known: N95s and other respirator masks (when they are legitimate and fit properly) are more protective than most cloth face masks are. But these disposable respirator masks cost $1 to $3 apiece, and throwing them out as quickly as you would paper cups can add up, especially if you’re masking your entire family. You might also be concerned about the environmental cost of disposable masks, which are constructed from nonrecyclable materials. Fortunately, for most people and in most situations, you don’t need to chuck your mask after each use, or each day. Here are some answers to common questions about reusing your disposable mask.

• Joanne Chen