The Medic Therapeutics H13 HEPA Activated Carbon Filter is a high-quality 4-stage filtration system designed for air purifiers. With a MERV rating of 13, this white filter cartridge features activated carbon filtration technology to effectively remove impurities and allergens from the air. It has a filter life of 6 months and is made with chemical-resistant materials, making it a durable and reliable choice for maintaining indoor air quality. The filter dimensions of 4.25 inches in diameter, 6.75 inches in length, and 6 inches in depth ensure a proper fit for various air purifier models, providing clean and fresh air for your home.