Life Flight Trust's communication manger Terri Rosenstock said people enjoyed themselves.
"There's been really great feedback, people were really excited and It was just an amazing
show of support for Life Flight."
Life Flight Trust acting chief executive Ian Pirie said some of the money raised would be used for upskilling staff and technical upgrades.
He said crews were getting ready for better equipment to transport some of the region's tiniest humans.
"The hospital foundation and the DHB have bought new incubators for the babies that we carry around so we're changing our equipment to carry those incubators, that's a big project at the moment."
Pirie said people who donated money at the open day would not necessarily use Life Flight's services but the trust was still meaningful to them.
"Most of them know somebody that has or will know somebody that will use our services so that's why they support it because they jolly well know that there will be somebody who will touch their lives who we've helped."