These products are a collection of fan and hose adapters to go from popular fan sizes to popular hose sizes. The products are just the adapters as they are intended to help the DIYer vent their own systems. Even though the pictures show fans as well, you have to buy those yourself! The pieces that take you from a fan
Resin smell begone! Safe 3d printing ventilation made easy — Asian Joy Collective
Bundle Voron 2.4 R2 kit STEP by STEP made by DHM: customize your 3D
3D Printer Dust Collection Needed as Industrial Technology Rises
3D Printer External Vent Adapter – 3D UP Fitters
3D Printer Enclosure Ventilation with Air Filter: The Basics
Creality 3D Printer Enclosure Exhaust Hose with 4000RPM Fan Ventilation Fume Extraction Kit for Laser Engraver Protective Cover - AliExpress
3DUpfitters 3D Printer Enclosures
3D Printer External Vent Adapter – 3D UP Fitters
Bambu Lab P1P 3D printer Enclosure Kit – Clearview Plastics