Nector Nano rda
It is one of the best flavor atomizers out there with a juice reservoir, a small build deck, and low profile. The Nectar Nano RDA was built primarily to enhance any flavor or e-liquid that you put into it.
One of the biggest draws for the Nectar Nano RDA is that it has a small tank attached to the bottom of the build deck. The tank is small, but works the same way as a typical genesis-style atomizer, saturating your preferred wicking material up into the deck.
The Nectar Nano RDA only allows for a single coil use, making it strictly a flavor atomizer. The way that the Nectar is built makes it perfect for flavor preservation. Sorry, cloud chasers.