Which model do you prefer?
The Classic Inverted Pyramid
The conventional representation of the hierarchy of controls is an inverted pyramid structure conveying the prioritization of strategies. Current versions orient the pyramid differently, depending on the agency or application of the controls. The clearest conflict in visual representation between the inverted and typical pyramid is found in the differing images offered by NIOSH (2023) and OSHA (n.d.-a).
NIOSH elevates elimination to the highest, most effective option for controlling workplace risk, situated at the top vertex, while PPE resides at the base. By contrast, OSHA orients the apex of its pyramid model to convey elimination as an aspirational level, with PPE representing the most readily accessible control.
Source: AIHA White Paper