This high-performance outdoor mask absorbs 95% of allergens. I purchased it for skiing during the COVID-19 pandemic, but I didn't use it, so I'm selling it. I bought it at a Montbell store for 1430 yen (tax included). It's unopened, but it's a used item stored at home, so I would appreciate it if you could understand this. - Brand: mont-bell - Product Name: FIELD MASK - Function: 95% allergen absorption - Material: High-performance material - How to use: Easy to put on - Country of Manufacture: Vietnam Thank you for looking.