Black background with WHN branding at the top reading “whn.global.” Large pink and white text says: “Masks don’t work.” Below it: “Let’s debunk this →” Smaller text near the bottom reads: “Short answer: They do, but only when used correctly, and not all ‘masks’ are created equal.” At the bottom: “World Health Network — Science for a safer, healthier world.”
Black background with “whn.global” at the top. Large pink text says: “The physics is clear: well-fitted respirators (N95/FFP2 or better) cut what you breathe out and what you breathe in.” Below, white text with one pink-highlighted phrase says: “Confusion often comes from studies that used loose surgical/medical masks, allowed people to take masks off while exposed, or mixed very different mask types and fits, conditions that blur the true benefit.” At the bottom: “World Health Network — Science for a safer, healthier world.”
Black background with “whn.global” at the top. Large pink heading says: “Dose matters.” Below, large white text says: “Infection risk rises with the dose you inhale; cutting that dose (even partially) lowers risk. When both people mask, the reduction compounds, dropping exposure much more than one person masking alone.” At the bottom: “World Health Network — Science for a safer, healthier world.”
Black background with “whn.global” at the top. Large pink heading says: “Fit is crucial.” Below, white text says: “Respirators are designed to seal and maintain high filtration across a range of particle sizes. Loose surgical/medical masks mainly help with source control and can leak around the edges; a well-fitted respirator protects you and others.” Lower down, smaller white and pink text says: “For more information, visit our ‘Yes, We Continue Wearing Masks’ page: whn.global/yes-we-continue-wearing-masks/” At the bottom: “World Health Network — Science for a safer, healthier world.”
“Masks don’t work.”
We still hear this a lot, and it usually comes down to misunderstanding how masks actually work.
Masks aren’t just tiny strainers. High-quality masks (like N95s) use electrostatic charge to attract and trap airborne particles, including those that carry viruses.
