Guaranteed Compatibility: Designed specifically for AC-M25-SC air purifiers to a and functionality.Effectively remove formaldehyde. Dual-Action Pre-Filter & Activated Carbon Filter:The pre-filter captures larger particles like dust and pet hair, prolonging the HEPA filter's lifespan, while the activated carbon layer targets and neutralizes odors from pets, cooking, and smoke, enhancing your living space's comfort. Advanced Triple-Layer Filtration: Features a high-efficiency activated carbon layer and a fine pre-filter to capture up to 99.97% of small 0.1-0.2 particles. Great for effectively removing odors, smoke and cooking fumes. Optimal Performance and Easy Maintenance: Replace your AC-M25-SC vacuum cleaner filter accessories every three months to maintain vacuum efficiency. This simple, routine adjustment can significantly extend the life of your vacuum cleaner and improve its performance, even in high-usage environments. Simplified Installation: This accessory is designed for easy installation and can be quickly installed or removed for easy cleaning and maintenance. This is an important feature to enhance user experience and operational convenience. Function: Consumables Use environment: Home use Colour:White Material:Plastic Package Contents: 2 * Filter Element Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.