Package Included:

"Air purifier": 1x MSB3 Air Purifier + 1x Pre-installed HEPA Filter

"1pack replacement filter": 1x Extra Original HEPA Filter for MSB3

"2pack replacement filter": 2x Extra Original HEPA Filters for MSB3

"3pack replacement filter": 3x Extra Original HEPA Filters for MSb3

Note: We recommend you to buy our original H13 True HEPA Filter to avoid the compatibility problems.