This Outcovers Silicone Mask Set with 10 Filters is good for 20 days. SOLD OUT COLORS: PITCH BLACK AND SKINNY DIP (LIMITED EDITION ONLY) CONTENTS: 1 Silicone Mask Choose No. of KN95 Filters below: 10 KN95 Filters (PHP 599) 2 Filter Brackets Each filter can last up to 48 hours of usage time. Our Outcovers masks is a general purpose mask, and provides general purpose-protection. Our masks are made with FDA approved silicone and have also passed the Fire & Water test. The KN95 Mask set has a 3-Layer protection which ensures the filtration of 95% of airborne particles. Cleaning options: Hand wash with soap and hot water. REMINDER: *Outcovers is not a medical device manufacturer. *Due to circumstances, all mask purchases are final.