Ender 3MAX super quiet printer cooling

super mute for ender3 max printer power supply using two 7020 12V fans, connected in series to get 6v power for one fan. The fans spin slower and much quieter than standard fans, but still provide very good cooling performance. After changing to such cooling, only the fans on the print head are noisier. 
In my case, the print was made with a 0.6mm nozzle using standard supports.