Organisers of the ‘FOMO’ Australian music festival will look to install thermal body temperature scanners for future events in light of evidence provided to an inquest into recent deaths.

The inquest into six fatalities at Australian festivals yesterday heard how Alex Ross-King, 19, died after attending this year’s FOMO event because she drank vodka on an empty stomach and took three MDMA tablets after becoming scared of being caught by police drug-detection dogs.

In a heatwave described as “an oven” the inquest heard the teenager desperately messaged her friends for help while looking to cool down in a shaded area.

The Australian FOMO music festival has promised to focus on harm minimisation for its 2020 event, including the possible use of thermal imaging to monitor punters' body heat. (9News)

Hours later, she had died of a cardiac arrest in hospital.

The inquest also heard yesterday that the event's water this year was not chilled and its dedicated chill-out zones had only a few fans despite temperatures reaching 33C in the shade by mid-afternoon.

FOMO today revealed it will look to put in place a series of harm minimisation measures for its 2020 festival in a bid to reduce deaths similar to that of Ms Ross-King.

Among those measures is a focus on “ambient temperature”, including “thermal and other non-obtrusive imaging and technology” in open spaces at the event to monitor punters’ body heat.

The measures were presented to the inquest today in a document that also reveals FOMO organisers will construct more shaded spaces, chilled water sources, misting tents, fans and cooling jets next year.

The pledge comes after an inquest into the deaths of six young people at music festivals heard Alex Ross-King, 19, died after drinking and taking drugs at this year's FOMO event. (PR IMAGE)

A focus will also be put on training staff and volunteers in harm minimisation when engaging with festival attendees, expanding “hydration stations” in and out of the event grounds, speaking to an expert doctor to review medical processes and monitoring food and drinks consumption via festival-goers’ event wristband.

A side-effect of MDMA use is that a person's body temperature rapidly rises after consumption.

A similar effect was witnessed when Joshua Tam, 22, was rushed into a medical tent at the NSW Lost Paradise festival in 2018 while critically ill with a body temperature of 43C - six degrees above average - and a heart rate of 190 beats per minute.

He later died in Gosford Hospital.

FOMO Festival is a one-day event that is held in multiple cities including Brisbane, Adelaide, Sydney, Melbourne, Perth and Auckland. The festival’s next string of events will occur in January, 2020.

The inquest today examined the 2019 event's harm reduction measures, hearing event staff scrambled to find fans for the Red Cross Save-A-Mate chill-out spaces on the day.

The inquest is examining whether medical treatment was adequate and appropriate, and if effective harm minimisation strategies were in place at multiple NSW music festivals. (9News)

Three fans hired and delivered to the venue were identified as "missing" as the event got under way about 11am so staff were sent to Bunnings, freelance event manager Holly Gazal said.

Later, a medical tent took one fan for patients, leaving hot and bothered patrons in chill-out zones to share two fans.

"I did ask if we need to get more and (Save-A-Mate organiser Jessica Surkitt) said 'no, we will make it work'," Ms Gazal said.

Ms Surkitt later told police there weren't an adequate number of fans and the main chill-out space was at capacity (40 people) from 1pm until 9pm, the inquest has been told.

The inquest heard how this year's FOMO event did not have chilled water and there were not enough fans for the number of patrons packing out shaded areas. (9NEWS)

The pledge comes a day after RMIT University expert Dr Monica Barratt told the inquest that MDMA accounted for the second-highest number of festival-goers seeking emergency medical treatment over the past year.

In a survey of more than 5000 people who attended Australian music festivals, 4.3 per cent of people sought medical treatment for issues relating to alcohol, followed by 2.5 per cent for MDMA.

Adding to that, Dr Barratt also told the inquest that on average festival-goers were found to consume 15 standard alcohol drinks at events – or three-times the recommended limit – and an average of three MDMA pills were taken in a single session.

“There’s no safe way you can guarantee, 100 per cent, that nothing bad will happen,” she said.

“There’s no way of knowing anything that has a risk is going to be safe in that incidence… We can’t go forward with this idea there’s 100 per cent safety.

“It doesn’t mean we can’t start messaging as soon as possible – I think we should.”