1. Improve cleaning efficiency: The replacement main brush head uses bristles in good condition to quickly sweep up dust, debris and small waste. Compared with a worn old head, it covers the cleaning area faster, greatly boosting cleaning efficiency. 2. Optimize cleaning on different surfaces: When the old head wears, bristle fit to floors and carpets deteriorates. The replacement head closely adheres to various surfaces, cleans deep into crevices, and captures tiny debris, improving overall cleanliness. 3. Ensure smooth operation: Aging rotating parts can become stuck or inflexible. The replacement main brush head has a robust, complete structure and rotates smoothly, enabling stable vacuum operation and reducing cleaning interruptions. 4. Reduce maintenance costs: Replacing the main brush head in a timely manner reduces wear on other components caused by brush-head failures. In the long run, this lowers maintenance costs and extends the vacuum cleaner’s service life. Use scenarios: - Daily cleaning on hard floors and low-pile carpets to quickly remove dust and debris. - Cleaning under furniture, in corners, and other tight spaces to reach hidden debris. - Quick refreshes in high-traffic areas to maintain surface cleanliness between deeper cleans.