General description Replacement Parts HEPA Filter compatible with I7, I7+, I3, I3+, E5, E6, and E7 Robot Vacuum Cleaners. Made of high-strength, environmentally friendly materials, these filters are designed to maintain the cleaning performance of your vacuum while reducing the penetration of dust, pollen, and other allergens into the air. Technical specifications Material: Plastic Color: As shown Package Contents: 12 x Filter Elements, 1 x Cleaning Brush Measurement allowed error: +/- 1-3 cm Installation Easy to install Usage It is recommended to replace the filter every 1-2 months for optimal performance. Other information