The product is a set of two new genuine Blueair Blue Pure F4MAX 411i Max/411a Max OEM replacement filters. These HEPA filters are designed for use in Blueair air purifiers and are sourced from China. They are AHAM and CARB certified, ensuring high filtration efficiency and quality. The filters are easy to install and operate, featuring touch control and button control for convenience. With a sleek blue color and a compact size of 4.1"D x 13.9"W x 9.8"H, these filters are a reliable choice for maintaining clean and fresh air in your home.