Unlike other diseases, not many people knew what cystic fibrosis was, she said.
"If you tell people we have cystic fibrosis, they have no idea what it means.
"If we are in the street coughing, they think we are full of bugs and keep away.
"So we thought if people actually knew what it is, like how everybody knows what cancer is, we wouldn't get those looks."
Mrs Purton said she had been given nasty comments in public places, like the supermarket, from her coughing from the disease.
"People that know you, they understand it. But people who don't, they don't understand.
"You look well but they don't understand how sick you are. It's important that people to understand what we have, and what we are feeling."
The 32-year-old said instead of spending money on buying gifts and treats for people like they did last year, they wanted to put their time and energy into deeds like helping people in some ways and volunteering for organisations.
Last year, they had lots of feedback from parents of children who had been diagnosed with the disease. "For them to see see how far we had come helped them cope and understand with their own children."
Cystic fibrosis:
* Cystic fibrosis (CF) is the most common life-threatening genetic disorder affecting New Zealand children. It is an inherited disorder and is non-contagious. CF affects a number of organs in the body (especially the lungs and pancreas) by clogging them with thick, sticky mucus. In the lungs this can cause shortness of breath, a chronic cough and repeated chest infections. At present there is no cure for CF.