A reusable face mask will not protect against infection if used improperly and no other measures are taken.
STEPS TO USAGE CORD LOCKS
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STEP 1 | Pass the threaded needle trough the SMALL hole of the cord lock. |
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STEP 2 | Pass the needle trough the mask elastic cord. |
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STEP 3 | Piece the needle trough the LARGE hole and SMALL hole. |
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STEP 4 | Pull it lightly and remove the needle. |