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Results of a subjective questionnaire evaluation of changes in skin wrinkles and pores after 4 wk of mask wear. (A) Responses to questions about skin changes due to long‐term mask wear. (B) Responses to questioning about whether or not the study participants believed that long‐term mask wear would affect their skin (B). A1, facial skin area covered by the mask where no moisturizer was applied. A2, facial skin area covered by the mask where moisturizer was applied
