Glenda and Graham Goddard don't consider themselves heroes, but together they have potentially saved more than 3350 lives.
Avid travellers, distance or inconvenience has never stood in the way of the pair donating blood and plasma since the 1980s, with more than 1118 donations between them.
For Mr Goddard, giving blood was a habit passed onto him by his mother.
But for Mrs Goddard, the service took on a new meaning when she was involved in a serious car accident.
"I needed blood myself, so I guess I made the decision that I wanted to give back," she said.
"Now it is just something we do together."
Originally from Katoomba in NSW, over the years the couple have travelled "just about everywhere".
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Now in St Helens, Mr Goddard said needing to travel to Launceston every two weeks didn't deter them from donating.
"It is our day off really, " he said.
"We make a day of it always organise something else to do."
October 7 to 13 is International Plasma Awareness Week, aimed at recognising the role of plasma donors in saving and improving lives.
Australian Red Cross Blood Service's Ann Harvey said over the past decade, demand for plasma products had increased by about 10 per cent a year.
"Blood donation is not just about the red stuff," she said.
"Plasma makes up the majority of our blood, and is full of important proteins and nutrients that protect us against invaders and help our blood to clot.
"Plasma and plasma products can be the last line of defence in the treatment of many serious medical conditions like cancer, bleeding disorders, immune and neurological conditions, and burns."
The Launceston Donor Centre has about 240 plasma appointments available in October to the first week of November.
Call 13 14 95 or visit donateblood.com.au.