Yorkshire Air Ambulance has launched a campaign to keep its helicopters in the air.
The charity needs to raise £9,900 every day to keep its services running and has launched a new appeal to meet rising demand.
West Yorkshire regional fundraiser Kerry Garner said: “Being a volunteer is a really great way to get out and about in your local area and meet people. You would be part of a fantastic team and you can do as little or as much as you want, to fit in with your lifestyle.”
Ossett resident Tracy Gregory became involved with the charity after her husband, Mick, died in a motorbike accident.
“I didn’t think I could be a volunteer because I work full-time but it doesn’t matter how much or how little time you can give, it’s really appreciated.”
The charity will hold voluntering evenings at its Elland headquarters in South Lane on Wednesday May 21 and Tuesday July 22, both at 6.30pm.