PPE is the least effective control measure because the hazards and risks are still present.
Whilst the employer is legally obliged to ensure that PPE is appropriate for the person who uses it and that it controls the risk for that person, there are issues of proper fit and design for different individuals. PPE can sometimes be awkward, uncomfortable and limiting, which may make workers less likely to use such equipment.
The risk management process requires employers to develop and implement more effective risk control measures, wherever possible.
See Clause 15 of the OHS Regulation 2001.