The design of the replacement filter and high-quality side brush of the vacuum cleaner conforms to the standard size of the original size.The filter of the vacuum cleaner is made of high-grade fiber, with excellent suction performance, which can keep your vacuum cleaner working normally.Tips★Replace the rotating side brushes and filters every 3~6 months (depending your usage frequency)★Clean the debris extractor roller set every 3~4 cycles★If the hair of side brushes tangle due to transportation, just soak them in the warm/hot water for a while