Industrial - Bachelor

AERIS: Redefining micromobility hygiene and safety

Aeris is an automated helmet cleaning device for shared e-scooters, designed to encourage helmet use by improving hygiene. Mounted on the scooter's stem, it disinfects, sterilises, and dries helmets between rides, reducing upper-body injury risk. By promoting cleanliness, Aeris makes shared micromobility safer, more convenient, and more trusted for all riders.

The Problem

Over the past 75 years, cities have undergone a phenomenon known as ‘rapid urbanisation.’ In Australia, this has contributed to a 23% increase in average commute times since the start of the 21st century. Personal mobility devices, particularly e-scooters, have recently gained traction as they attempt to alleviate CBD traffic and fast-track the first- and last-kilometre commute for many workers.

During the first two weeks of their deployment in 2018, Lime scooters experienced over 50,000 trips within Brisbane City. But fast-forward five years, and a worrying pattern has emerged: a 300% increase in scooter use matches an almost identical rise in personal mobility injuries. Governance has struggled to keep pace, with reactive regulations and unclear rules leaving riders exposed. Helmet compliance remains low at around 30%, often due to helmets being unavailable, inconvenient, unclean, or perceived as unattractive. Rider factors such as inexperience and intoxication further increase the risk of upper-body, head, and facial injuries, highlighting persistent safety gaps in shared e-scooter use.

Critical Research Insights

After the initial research was conducted, extensive primary research ensued. Triangulation was used to correlate data between 27 survey responses, 3 interviews, and 2 behavioural observations. These directly informed design opportunities.

From the primary research, it was found that helmet use was consistently low across surveys (31.8%) and observations (60%), with medical interviews linking low use to serious upper-body injuries. Respondents showed limited awareness of speed and intoxication rules, with some knowingly violating them. Most used e-scooters less than once per month, highlighting inexperience and unfamiliarity as risk factors. Environmental hazards were cited twice as often as behavioural causes of accidents. Users reported feeling able to ride improperly due to limited governance, while law enforcement confirmed these challenges. Concerns were also raised about helmet cleanliness, structural condition, and aesthetics, with many noting they would be more likely to wear a helmet if these factors were improved.

Really, there’s less police down the road doing proactive policing and pulling over people, because obviously there’s domestic violence jobs or mental health jobs they’re being called to.

Law Enforcement

I think that not wearing helmets and then going on really fast scooters is a recipe for disaster.

Student Doctor

The Opportunities

THE Design Process

Five design intervention solutions were identified from the exposed opportunities. The ‘Hygiene and Health Lock’ was selected as the most feasible. Over six weeks, this idea was developed further and simplified into a dedicated helmet cleaning device. Eight digital and physical prototypes were produced, balancing form, technology, and user experience within the tight space of a helmet mount.

The Solution

Meet Aeris – a smart, automated helmet cleaning system redefining safety and hygiene in shared micromobility. Seamlessly mounted on the scooter’s stem, Aeris cleans, purifies, and dries every helmet, every time. Between each ride, it uses a disinfectant mist spray, UVC light, and air-drying technology to ready the helmet for use. More than just a cleaning device, it’s a confidence booster – transforming helmet use from an afterthought into an effortless, hygienic habit that makes e-scooter travel safer, cleaner, and smarter.

Aeris is finished in a soft ivory white, symbolising purity and cleanliness while visually communicating hygiene – a key concern in shared helmet use. Its low-gloss texture not only resists scratches and fingerprints but also allows it to blend seamlessly with existing e-scooter aesthetics across different brands. A subtle grey bumper runs along the base, visually slimming the form while complementing brand colour schemes. Optional vent accents, such as Lime’s signature green, offer flexibility for brand integration without compromising the product’s clean visual identity. The name Aeris, meaning “belonging to the air,” encapsulates the product’s association with freedom, cleanliness, and effortless movement.

DESIGN FOR SAFETY

Safety was a top priority during the design of Aeris. For the smallest potential user — a female at the 1st percentile height — a 32-second UVC dose remains within safe occupational exposure limits. The bumper on the side helps to further shield stray light. If anyone approaches within 0.5 metres, Aeris pauses and plays an audible warning. It is able to do this due to its mm-wave radar that can decipher human movement from inanimate objects. This prevents overdosing to those passing by.

The 20-second cleaning cycle neutralises common bacteria and fungi such as E. coli, Penicillium, and Staph. During this cycle, over 99% of this surface bacteria and fungi are neutralised.

The Quaternary Ammonium Compound (QAC) disinfectant specified for Aeris is food-grade, safe once dry, and fully evaporated by the 2-minute drying cycle. Because of this, contact risk is heavily mitigated.

All safety and regulatory documents are also printed on the back for the user’s discretion.

DESIGN FOR MAINTENANCE

Aeris is designed to be maintained on-the-go during regular battery change-outs. A long-nozzle bottle allows for refilling, with viewing ports on the side to check disinfectant levels. Since vandalism is possible, refill and wiring ports are hidden at the rear and are protected by the bumper. Overfilling is prevented by a one-way valve and immersion breather attached directly to the bottle. A small, bristled brush is also provided to clean debris from these ports.

DESIGN FOR MANUFACTURE

Of Aeris’ 25 components, 13 are bespoke and most are produced by injection moulding – ideal for large-scale manufacturing. The internal components use ABS for strength, mouldability, and chemical resistance, while the exterior uses ASA, which adds UV protection for exposure to UVC light. Around the edge, a soft silicone bumper improves durability and absorbs impact, given the device is likely to hit the ground often.
Name
RESEARCH REPORT: REDUCING THE INCIDENCE AND SEVERITY OF SHARED E-SCOOTER INJURIES VIA DESIGNED INTERVENTIONS
File Type
application
File Size
3 MB
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Hayden Ivanisevic

Hayden is a function-driven industrial designer and mechanical engineer who creates practical, user-focused solutions. Focused on human connection, usability, and sustainability, he blends technical insight with refined aesthetics to develop products that are purposeful, enduring, and deeply attuned to the user experience.