【Instant purchase welcome!!】 【Free shipping!!】 【Anonymous shipping!!】 Shipping schedule: Shipped on the same day or the next day of purchase!! (We will contact you in case of any unforeseen circumstances.) Shipping method: We will ship via "Yu-Packet Post," which offers anonymous shipping and insurance. Packaging method: We will ship in an envelope with air padding. (Please refer to the attached photos.) We also offer single items/bulk sales. ・1 set = ¥680 (Yu-Packet Post) ・2 sets = ¥1180 (Yu-Packet Post) ・4 sets = ¥2180 (Yu-Packet Post) ※Please consult us before purchasing if you wish to do so. -------Product Information------ 【How to use】 ・Cannot be installed if the ventilation fan is dirty or wet. ・Wipe off the dirt thoroughly and place it in a dry state. ★Installation method ・Cut to fit the ventilation fan, peel off the transparent film, and stick it to the ventilation fan. 【Material of Firtan Patto Haru Dake Dust Filter for Ventilation Fans 30cm Free Size 5410】 Material: Polyester fiber + Imidazole-based antibacterial agent 【Specifications】 Product size: Approximately 30cm long * 30cm wide 【Precautions】 ・This product is for indoor use only. Do not use it outdoors. ・It may not be possible to install it depending on the size and shape of the ventilation fan. Please read the instructions on the package carefully before use. ・Also, it cannot be installed on models with embossed surfaces. ・It may peel off in strong winds. ・If installed on a 24-hour ventilation system fan, the ventilation switch may turn off. ・Replace it promptly when the replacement sign appears. ・If used while dirty, the filter will become clogged, which may reduce ventilation performance. ・Replace it in about 2-3 months even if the replacement sign does not appear properly. ・Occasionally, adhesive residue may remain when the filter is removed. ・In that case, wipe it off with a neutral detergent. ・When disposing of it as garbage, follow the rules of your local residents. ・Do not use it for purposes other than its intended use.