General description Replacement HEPA filters are specially designed to fit iRobot Roomba i7, i7+, J7, j7+, Plus, i3, i3+, i2, i2+, i1, i1+, i4, i6, i6+, i8, i8+, E5, E6, E7, EVO, EI, and J series robot vacuum cleaners. This package includes 20 high-quality filters, making it an economical choice for maintaining your robot vacuum cleaner. Technical specifications Compatible models: iRobot Roomba i7, i7+, J7, j7+, Plus, i3, i3+, i2, i2+, i1, i1+, i4, i6, i6+, i8, i8+, E5, E6, E7, EVO, EI, and J series Not compatible with: Combo J7+/j7 plus Filter replacement frequency: every 1 to 2 months Installation Easy to install with a method identical to the original parts Usage Filters effectively capture up to 99.9% of dirt, pollen, small dust particles, and other substances Helps prevent dust from entering the motor, extending the life of the robot vacuum cleaner Other information Made of high-quality, environmentally friendly materials Designed with rounded corners to prevent hand injuries