Saniflo and sink vent

[Help me out]

I planning to install a 1/2 bath using a saniflo and have it mostly figured out plumbing wise but not sure about venting. The sink and toilet will drain into the saniflo. The saniflo will be vented. Does the sink need its own separate vent connection? If so, can I use an AAV on the sink. I know the saniflo needs to be vented through the roof

 

[Jeff H Young]

you sure can't do it without a vent or AAV. the trap would siphon