I have a number of “decommissioned” CPAP hoses which I plan to reuse as a little fume or dust extractor. Once you want to connect several hoses together you may find this model useful. 

Update 04/17/2025:

I also designed a magnetic connectors with this hose: https://www.printables.com/model/1267740-cpap-hose-magnet-connectors

Update 06/10/2025:

I also modified Dyson adapter to connect with this hose:

https://www.printables.com/model/1323585-dyson-adapter-for-cpap-hose