After the initial use, the Rethink Reusable Surgical Mask Filter can be disinfected with boiling hot water and reused 9 times. This is a significant differentiator from the filter media used in traditional single-use masks. Numerous systematic studies* on the extended use, re-use, or reprocessing of single-use medical masks have shown that extended use and re-use of single-use medical masks leads to diminished performance.

*Centre for Evidence-Based Medicine. “Extended use or re-use of single-use surgical masks and filtering facepiece respirators: A rapid evidence review.