I made the assumption, I guess wrong, that given the power adaptor that comes with the Macbook Air is 30W that this Anker 60W would deliver enough power. First off I'm using an Anker 60W Powerport 6 as power. In either case the Macbook Air shows AC Charger Information:

I tried a VANMASS 9-in-1 USB HUB and a Sicotool 8 in 1 Type C Combo USB C Hub Adapter I bought 2 hubs and neither seems to be able to do this. Please note that the HyperDrive DUO hub does not support Apple SuperDrives and its USB ports cannot charge iPads.In other words I want to plug the hub into my Macbook Air and the power into the Hub ->-> You can connect a 3840 x 2160 4K display to the hub's HDMI port to enjoy watching videos on a larger screen or to increase your desktop space for more efficient multitasking. The HyperDrive DUO also has both a SD and microSD card reader for transferring photos, videos, and more to your MacBook. Two USB 3.1 Type-A ports are available for peripherals such as keyboards and mice, making for a combined throughput rate of up to 50 Gb/s for across all seven ports. It features a Thunderbolt 3 port with up to 40 Gb/s throughput and 100W power delivery in addition to a USB 3.1 Gen 1 Type-C connector with 60W power delivery capable of up to 5 Gb/s for connecting devices such as storage drives and printers. Designed to be used with the MacBook Pro and MacBook Air, this space gray-colored, low-profile hub features a magnetic strip to help ensure a secure connection to your laptop. Expand the Thunderbolt 3 ports on your MacBook to seven with this HyperDrive DUO 7-in-2 USB Type-C Hub for Select MacBook Pro and MacBook Air Models.

Macbook air usb c hub