About this 3D model

Air Filter Box. Box Body Outer: Rounded Rectangle, Side Length 100mm Inner: Rounded Rectangle, Side Length 94mm Height: Outer: 94mm Inner: 80mm The outer diameter of the tube opening on the lid is 50mm. Mainly used for DIY enclosure air filtration. Can be used as internal air circulation filtration within the enclosure, or as a pre-filter for external air exhaust. The snap design between the lid and the box body has a large redundant space, so it needs to be glued together with tape for sealing. Requires a lot of printing support. The support inside the lid can be left in place if it doesn't affect the material loading height. It is recommended to place HEPA filter cotton at the bottom and then activated carbon. A finished product reference The lid and the box body are sealed with tape, which makes it easy to replace the filter material. The following materials are required: Hose: 50mm inner diameter duct Fan: 50mm outer diameter duct, 12v fan Activated Carbon HEPA Filter Cotton Plastic Glue Mainly used for sealing and fixing the connection between the duct and the connector. It is recommended to use the kind that doesn't solidify too quickly, otherwise you may not have time to adjust when connecting the hose. Electrician's tape Mainly used for sealing and fixing. 12v adjustable power supply Conversion connector (optional): 50mm outer diameter to 25mm duct converter. The conversion to 25mm allows the pipe to exit from the wall air conditioning duct. Model link: https://makerworld.com/zh/models/169196#profileId-185797 25mm inner diameter duct Actual finished product display: 12v adjustable power supply Exhaust effect The actual effect is good. I thought the fan wouldn't be able to suck in the air after adding the HEPA filter cotton and activated carbon, but it can actually suck in air normally. The fan power I used is relatively small because high power is also noisy. Actual use depends on individual circumstances.