20quantity (N 100 8233 mask). These are made in 3m factory and they are not expired,,, I repeat not expired. The item "Cool Flow 3M 8233 Made In America N100 NIOSH / Individual Seal 04/2025 case 20" is in sale since Wednesday, June 10, 2020. This item is in the category "eBay Motors\Automotive Tools & Supplies\Auto Paints & Supplies\Automotive Paint Supplies". The seller is "heating_n_air_products" and is located in Chesterfield, South Carolina.This item can be shipped to United States.