What droplet generator should I choose?

Recommended droplet generator type

The default recommnende option is a focused flow droplet generator. T-shaped droplets are only recommend when there's a good consideration behind.
It's recommended to always start with a single junction chip, instead of version with multiple parallel junctions. 

Nozzle size recommendation

We recommend the following nozzle size per droplet size range:

The reference droplet size range is based on a reference experiment with Silicone oil 5cSt and DI water combined with 2% v/v Tween 20 or Tween 80.

Surface coating