General description For 4 Lite Filter Replacement Activated Carbon Filter is designed to enhance air quality by filtering fine dust, pollen, and other allergens. Made from high-quality composite materials, this filter ensures that the air you breathe is cleaner and healthier. Technical specifications Material: Composite materials Color: Blue Package Contents: 1 x HEPA filter Measurement allowed error: +/- 1-3 cm Installation Easy to remove and replace as part of normal maintenance. Usage It is recommended to replace the filter every 2 to 3 months for optimal performance.