◎ This is a convenient dust filter that's easy to use, simply by sticking it on. By applying it to the ventilation fans in your bathroom or toilet, it prevents dust and dirt from accumulating, making cleaning easier. ・ Anti-mold and antibacterial treatment ・ Cut-to-fit size (approx. 30 x 30 cm) ・ 3 sheets per bag x 3 sets (9 sheets total) ・ New (Only one bag has been opened to check the condition, but it is unused.) ◆ I am selling my stock because the size of my ventilation fan no longer fits due to moving. Although it is unused, I opened one bag to check the condition. Please refrain from purchasing if you are concerned, as there may be some scratches on the packaging due to handling by a non-professional and home storage. ◆ Please be sure to read the profile before purchasing. ◆ Immediate purchase is OK. ◆ I do not have any pets. Neither I nor my housemates smoke. ◆ We will protect it with an OPP bag to prevent it from getting wet before shipping. ◆ Please feel free to contact us if you have any questions. Thank you for looking.