Creality Ender-3 V3 SE left side 5015 blower fan duct with optionally ADXL345 vibration compensation sensor holder. This model uses negative volume in the slicer.
For the right side I recommend this duct: https://www.printables.com/model/1121848-ender-3-v3-se-5015-blower-fan-ducts-stable-version
The author remixed this model.
Hole for easy assembly.