Air vent cover, comes in two flavours. The hex grid let light pass, while the striped one hides the view of the inside of the air vent, if correctly positioned.

The hole diameter is 130mm, but you can scale it to fit almost any hole size.

Inside the grid there are 4 pockets where you can fit a metallic net.

Creality

Ender 3 Pro

No

No

200

15