Outdoor Research Essential Filter Refill Kit

• Disposable, high-filtration filters for use with the Outdoor Research Essential Face Mask, sold separately
• Filters greater than 95% of virus, bacteria and particles in accordance with ASTM test standards
• Durable, breathable and non-irritating
• Average wear is approximately 5 to 7 days; replace more often if you wear a mask 8+ hours a day or live in a hot climate
• 3-pack
• Made in USA

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