Couples and families with young children turned out to listen to Canberra's top health officials explain the possible risks associated with asbestos exposure.

Asbestos Response Taskforce head Andrew Kefford said the health forum had been a request made at a previous Mr Fluffy forum hosted by chief minister Katy Gallagher.

He said, as a result, one forum had been arranged relatively quickly and a second one would be held on the 3rd August, on the northside of Canberra.

During the forum, ACT chief health officer Dr Andrew Pengilley said health problems caused by asbestos were rare, even in places with an incredibly high level of exposure to the substance.

He said the rate of mesothelioma in people exposed to asbestos through home renovations was up to 6 cases in every 100,000 people, comparative to the change of dying in a traffic accident in the ACT.

"Overall the message is that fortunately even in populations that exposed to asbestos most of the health consequences of that are comparatively rare," he said.

"So we have to say to people, look, there is an exposure to asbestos, that is always concerning and there's a risk associated with that, but we don't believe it's a high risk in the scale of other risks."

Among the speakers who gave presentations at the evening, before a question and answer session, were Dr Pengilley and Canberra Hospital senior respiratory physician Dr Mark Hurwitz.

ACT Health director-general Dr Peggy Brown said there had been a level of concern among homeowners with homes containing Mr Fluffy asbestos, which had been expressed at previous public forums.

"The purpose of the forum this evening is actually to provide information so people know what the risks are that they might be facing and what to do now and into the future, and what assistance is available for them," she said.

Dr Brown said support and counselling were available for those who needed it, from a psychologist up to specialist mental health intervention, which she said was free of charge.