First try at uploading pictures.
Simple ona bucket drill holes then notch the top of bucket to fit switch on fan.
Then add filter from lowes that has carbon in it. These are stated to last 90 days. If the filters don't last long I'll reverse a bucket to fit on top of the fan with the bottom cut out. Add the grill that came with filter to hold filter then I can pour charcoal on top of the filter. Bucket free fan 10$ filter 10$ fresh air priceless
Beware if you use chunks of ona or like me the 4$ cheep stuff in water you make a big humidifier. Had to water cure that crop because of mold. Glad I read about that here I almost threw the whole lot out.