The Airpura 600/700 Series Replacement Pre-Filter (2 PACK) is designed specifically for use with Airpura's 600 and 700 Series air purifiers. This high-efficiency pre-filter fits models including R600, UV600, P600, P700, and more, ensuring optimal performance and air quality. Each pack contains two pre-filters, crafted from durable filtration materials to capture larger particles, prolonging the life of your main filter. Perfect for maintaining a healthy indoor environment.