PG? The up and right = better guidance came from a sales guy that I didn’t initially have a lot of respect for. But, he was right. People naturally assume up a

PG? The up and right = better guidance came from a sales guy that I didn’t initially have a lot of respect for. But, he was right. People naturally assume up and right is better on any graph, so present your data in that way. So, 1/resistance versus filtration? Or how much air is passed through the filter (cubic meters per second) given a fixed amount of lung power.