S1C Refillable Filter Box 空气过滤盒

A refillable filter media box/cartridge designed for the S1/S1C. It features a cutout for easy insertion and removal, as well as internal ridges that securely hold activated carbon or other filter media in place, preventing it from settling at the bottom of the box. 一款适用于S1/S1C的可重复使用过滤盒/滤芯。它的两侧带有方便抓握的缺口。内部的加强筋也可以有效地防止活性炭或者别的滤材堆积在滤盒底部。