20 inch Box Fan Air Filter Kit - 3d printed

More information here:
https://cults3d.com/en/3d-model/home/20-inch-box-fan-using-4-1-inch-air-filters

This is a 20 inch Box Fan with 4 - 1 inch x 20 inch x 20 inch (Merv 8, Merv 11, or Merv 13) Air Filters.

I used: PETG, Settings: Hotend: 241 degrees C, Bed: 86 degrees C, Temp Glass Bed.

What you will need is:
1 - 20 inch x 20 inch x 3.5mm cardboard for the bottom
1 - Lasko Air Circulating 20 INCH Box Fan, White (Amazon.com)
1 - Aerostar 20 inch x 20 inch x 1 inch, MERV 13 Pleated Air Filter, AC Furnace Air Filter, 4 Pack (Actual Size: 19 3/4" x 19 3/4" x 3/4") (Amazon.com)

Print:
8 - Corner Box Fan Air Filter.stl (4 for the top and 4 for the bottom corners)
8 - Slide Clip Box Fan Air Filter.stl
4 or 8 - Bottom Clip Box Fan Air Filter.stl (it holds the cardboard)
2 - Top Left Box Fan Air Filter.stl
2 - Top Right Box Fan Air Filter.stl

This works GREAT!!