This is a genuine humidifier filter from Dainichi. It is a set of two boxes. Although it is unused, the outer box has some damage due to storage. This does not affect the filters themselves. [Excerpt from the manufacturer] Please use genuine filters for your humidifier. We have confirmed the distribution of inexpensive copy products that imitate Dainichi products. If you use a filter that is not genuine, the humidifier may not perform its original performance, such as not reaching the specified humidity level. [Applicable models] HD-EN500, HD-EN700 I would like to sell this to someone who understands that it has been stored at home. Please let me know if you have any questions. The items in the images are all that are included. Thank you very much.