코스트코 온라인몰 판매 재개
https://www.costco.co.kr/Notification_Mask?itm_source=homepage&itm_medium=bigbanner4&itm_campaign=fy20p7w3Notification_Mask&itm_term=Notification_Mask&itm_content=Notification_Mask
줄서는게 나을듯
https://www.costco.co.kr/HealthSupplement/Home-Health-CareFirst-Aid/First-Aid/Welcron-Care-On-KF80-Yellow-Dust-Mask-10ct/p/632085
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