The Air Purifier Filter AC4142 Kit is a professional replacement accessory set, exclusively designed to match a wide range of Philips air purifier models including AC4072, AC4074, AC4083, AC4084, AC4085, AC4086, AC4014, and ACP073. As a comprehensive filtration solution, this kit integrates multiple high-performance filter components to fully restore and enhance the air-purifying capability of your Philips device, ensuring consistent delivery of clean, healthy indoor air for families, especially in bedrooms, living rooms, or small offices.