He has spent the past 10 years working in his backyard to create pollution busters.

He built a pollution-reduction incinerator in 2004, which captured emissions from chimneys and diverted them into the ground.

Branching off from that idea, he went on to create a pollution purifier to place over the exhaust pipes of trucks.

“This system will catch the pollution and purify it before releasing it back into the air,” Mr Ali said.

“It’s a simple device that I tested a number of times before completing the final product and it weighs about five kilograms on a truck.”

The large device captures the emissions and sends them through a pipe, which moves through a rotating fan mixed with water from a side tank.

As it turns into mist, it falls down over a dish, where it mixes in with the air at the bottom. The diluted green house gas and water is then recycled back into the tank.

“I haven’t had a chance to test it on an actual truck yet,” Mr Ali said. “But I have tested it at home with my pollution incinerator and I have patented the product.”

A spokeswoman for the Department of Environment, Climate Change and Water said she was not aware of such a machine being invented before but initiatives were in place to combat emissions.

“For older diesel vehicles that remain on the road, we run the NSW diesel retrofit program,” the spokeswoman said.

“We fit older vehicles with exhaust treatment devices and we found that this reduced particle emissions by an average of 50 percent.”

The spokeswoman said the program targeted on-road transport trucking companies, of which 71 had taken part so far.

“We also operate a smoky-vehicle detection program, which aims to reduce vehicle emissions by ensuring owners properly maintain their vehicles,” she said.

“Under NSW environmental legislation, it is an offence for a vehicle to emit visible air impurities for more than 10 seconds, so this allows authorised officers and the general public to report smoky vehicles, which leads to a warning letter and a possible fine if it is repeated.”

An RTA spokesman said that for any object to be placed on a truck, the dimensions must not exceed an overall width of 2.5 metres and an overall height of 4.3 metres.