HEPA filter adapter for 120 mm fan

prusaprinters

after searching of a filter that would fit to the 120mm fan, with no good results I've made this by myself. I've bought this filters on amazon:https://www.amazon.com/dp/B07W8SXK4B/ref=cm_sw_r_apan_glt_i_HWS8PPXAWM9EJ8KRTTHY?_encoding=UTF8&psc=1and the print would fit a 120mm fan.the big part can be printed on the i3 (max length is 250mm) if its too big for you, you can slice it to 2 prints.the D-ring is made of TPU, but its not really necessary.