A glove that costs more per pair can be the cheaper glove in service, and the opposite happens just as often. The invoice records what a unit cost on the day of delivery. The budget is decided by how many certified wear hours the team gets from it, and what it costs to keep those hours available.
Where the money actually goes
Build the model in four lines: acquisition, recurring care, replacement, and consequence. Acquisition is the visible line and rarely more than half of a three-year figure, because a pair issued to a HAZMAT crew serves repeatedly until it retires.
Recurring care covers liners, decontamination solution, wipes, water, drying and staff time. Replacement is driven by damage and decontamination cycles rather than by the calendar. Consequence covers the hours a team loses when gloves are out of service, when a new model has to be trained in, and when a pair fails during a task.
Cleaning, consumables and decontamination cycles
Every decontamination cycle consumes solution, wipes and staff time, and part of the glove. Ask which decontamination methods the certification actually covers, and how many wash or wipe cycles the tested envelope allows. Many laminate constructions tolerate a limited number of cycles before barrier performance falls outside the tested range, after which the pair is no longer a certified item.
Here a cheap glove becomes expensive. A model that accepts more cycles spreads the same consumable budget across more wear hours. Drying matters too: a pair that needs a full day to dry forces a larger pool into the rotation for the same number of wearers, an acquisition cost hidden inside a cleaning routine.
Replacement frequency, training and downtime
Treat every "annual replacement" figure as a claim to be tested. Derive it instead: cycles per pair per year, damage rate from two years of incident and training logs, and the retirement rate found at inspection. Set that against the cycle limit and shelf life the vendor states in writing. A pair priced lower with half the cycle limit can require twice the replacement volume, and stock with a short remaining shelf life is capital that expires on the shelf, not in the field.
Training belongs to the same line. A new glove means a new donning routine, a different sense of touch and altered grip on tools, so count instructor hours, drill time and the temporary loss of task speed in the first weeks. Count also the extra pairs bought to cover decontamination downtime, because gloves in the wash are gloves a crew cannot wear.
The costliest event is a pair that fails mid-incident. It cannot be priced precisely, but it can be counted: how often per year was a glove abandoned, swapped or worked around at the wrong moment? That number belongs in the comparison.
Building a like-for-like comparison
Normalise before you rank. Compare cost per certified wear hour over a fixed horizon, typically three years, using identical volumes, one site, one task profile and the same standard basis: test chemical, breakthrough threshold, permitted decontamination cycles and shelf life at delivery. Require consumables to be quoted separately so bidders cannot bury care costs in a service line.
Write the assumptions into the tender and let bidders challenge them. Run the ranking twice, once on a low-usage station and once on a busy one. If the winner changes, that is useful information about where each glove belongs, not a flaw in the method.
The lowest unit price is only a bargain when it stays in service long enough to earn it.