I'm brewing a NEIPA for the first time and planning to bottle it. I've done a lot of research before attempting this beer. I am taking all possible efforts to eliminate oxygen exposure. I realized I could go as far as purging the headspace of the fermenter with CO2 while dry hopping by using my SodaStream machine. I sanitized a piece of 1/4" ID vinyl tube and connected it to the SodaStream nozzle. After I put in my hop bag, I closed the bucket lid 90%, inserted the end of the vinyl tube and pressed the SodaStream button until I could see CO2 gas coming back out of the bucket. Worked like a charm.