Effectively filters dust particles as small as 0.3 μm: The filter is made of high quality filter materials that have been folded multiple times to form a tight composite construction that provides high efficiency filtration and prevents secondary pollution.
Original pre-filter to prevent dust from entering increases the life of the filter: By additionally using a pre-filter, the ingress of larger dust particles is prevented in advance in order to reduce the load on the highly efficient filter and thus extend its service life.
Removable and washable Long durability, less waste: The highly efficient filter set can be washed and used multiple times after air drying.