Both public concern and a possible class action are mounting, as a coal mine fire continues burying a Victorian town in smoke and fumes.

Emergency authorities say it may be months before they can extinguish the Hazelwood open cut mine fire near the town of Morwell.

Efforts have been taken to ease locals' fears, and an evacuation plan will be enacted as soon as it becomes necessary.

Meanwhile, local residents say they are fed up with the constant coating of thick haze and ash, calling on governments to step in and help out.

Townspeople will take to the smoke-filled streets of Morwell in protest this weekend. The general feeling is that the town has been ignored, according to the Facebook page organising the rally.

“We are told to leave by governing bodies, but were given no real assistance to do so," the social media listing says.

“We demand the government stop ignoring us and give us real options for our future, our health and our families.”

Authorities say the situation is being monitored as closely as possible, with over 200 fire-fighters battling the blaze around the clock, and a network of carbon monoxide sensors set up across the district.

The chief health officer for the region, Rosemary Lester, said the town’s evacuation plan has been drawn up but would not be enacted until carbon monoxide reached more dangerous levels.

“We are constantly monitoring that and we haven't gone anywhere near what we would regard a level to trigger talk about evacuation,” Dr Lester has told the ABC.

“Although in the scheme of things it has been very distressing to live through, at this stage this is still regarded as a short term exposure,” she said.

Victoria Police and Ambulance Victoria have issued a warning to female officers not to work at the forefront of the fire if they are either pregnant or trying to conceive, due to risks from the level of carbon monoxide.

Several measures have been taken by health services around the town, including handing out free face masks and setting up health assessment stations for more serious complaints.

There are reports that residents at the protest meeting this weekend will discuss the possibility of a class action against the mine's owner.

One organiser has told reporters that evidence will be gathered at the meeting to get a sense of the scale of negative effects.

Victorian Premier Denis Napthine visited Morwell earlier this, and announced a plan was in the work that may see other Victorians offering up their cabins and holiday homes to residents for a respite from the smoke.

“What we're calling on is perhaps people who have a holiday house in the Gippsland area, perhaps at Lakes Entrance, on the Gippsland lakes or in the hills or down at Foster... to perhaps make that available to people so we can have a genuine community response across Victoria to help families in Morwell,” Premier Napthine said.