You can't tell by looking at 5-year-old Kaitlyn Griggs, but it's taken her years to be able to climb stairs without having an asthma attack.

Kaitlyn's grandfather and dad are training for the Fight For Air Climb next week, which is organized by the American Lung Association. They, along with hundreds of others, have been practicing to climb 42 flights of stairs at the Bank of America building downtown. One firefighter plans to climb in all his gear.

It's part of a fundraiser to fight lung cancer, the second-most commonly diagnosed cancer in men and women and the most common cause of cancer death.

The money raised will be used to help find a cure for lung cancer and to fight diseases like asthma.

"I hoped when (Kaitlyn) was born she wouldn't have asthma," said Bryan Griggs, Kaitlyn's father, who also has asthma. "For the first year and a half, she didn't, and then it really came on. I kind of really relived my fears through her."

Bryan said he has struggled for years with asthma, and now it's tough watching his daughter fight to breathe.

"I don't believe breathing should be difficult," said Roy Carter, Kaitlyn's grandfather and CSX team leader in the Fight For Air Climb. "They are working trying to fix breathing so that everyone has the option of breathing clean air everywhere."

Carter is so motivated to help raise money to find a cure for people like his granddaughter that he has recruited more than 80 people from CSX to climb all 838 steps of the Bank of American building. CSX is one of several businesses recruiting team members.

"It doesn't just go to lung cancer, it goes to all the lung diseases," Caitlin Worthington, of the American Lung Association, said of the fundraiser. "It goes from (chronic obstructive pulmonary disease) to research and children with asthma and programs here in Jacksonville."

Worthington said nearly all the money raised by climbers stays in northeast Florida, money that will help children like Kaitlyn keep climbing.

It's not too late to register to climb. Anyone can do it, regardless of physical fitness.

The climb starts at 8 a.m. Feb. 4. If you'd like to give it a try ahead of time, you can show up during any one of the training sessions on Tuesday and Thursday from 5 p.m. to 6:30 p.m. or Saturday from 9 a.m. to 10:30 a.m.

It's $50 to register for the climb.

For more information, visit FightForAirClimb.org.