Add Phrozen Air Purifier to your resin 3D printing enclosure to reduce resin odor during 3D printing. Enjoy better air quality and an enhanced printing experience with a simple add-on. For Sonic Mega 8K V2 and Sonic Mighty Revo users, please choose the USB version of Phrozen Air Purifier. USB Air Purifier Content:USB Air Purifier *2, Activated Carbon Filter *2 Product Size: 125 x46 x46mm Activated Carbon Filter Size: 39 x 39 x 18 mm Battery Capacity: 2000 mAH Input: DC5V:1A Power: 0.35W Resources User Manual