A box of sixty form-fit, four-layer masks. Form-fit, these masks are designed to affix tightly to the face, providing an excellent seal for improved efficacy and preventing spectacle or glasses from being fogged during use. The low breathing resistance of these masks ensures greater comfort and breathability, and their four-layer design provides protection from liquid strike or splashes.
The best way to prevent fog is to ensure your glasses fit tightly, and seal under the eyes.
While many disposable masks can be used for up to 40 hours in some circumstances, it is recommended that in the dental practice masks are replaced after each use.