Donning and Doffing PPE

When you pull up to a sewage backup or a mould job, the PPE conversation needs to happen before anyone opens the van doors. Not when you are halfway through setting up containment, not when someone realises they forgot their goggles. The briefing happens in the driveway or the car park, before the first boot crosses the threshold. The reason is straightforward: PPE is a system, and a system only works when every part of it is in place and correctly fitted from the start. The respirator protects your airways. The coverall protects your skin and your street clothes. The goggles protect your eyes. The gloves protect your hands. Pull any one of those components out of the equation, or fit them badly, and you have created an exposure pathway. A gap at the wrist where the glove cuff is not taped, a respirator that is not sealed properly because it was put on in a rush, vented safety glasses instead of chemical splash goggles on a sewage job, each of those is a route for contamination to reach you.

The ensemble you need depends on what you are walking into. A Category 1 water loss from a clean supply line is a low biological risk, so nitrile gloves and eye protection are the baseline. Step up to a Category 2 loss, a washing machine overflow that has been sitting for two days, or a moderate mould job, and you are adding a P2 respirator and a disposable apron or coverall. Category 3 is the full kit: disposable Tyvek coverall, double gloves with taped cuffs, chemical splash goggles, P2 or P3 respirator, and rubber boots. Sewage work, heavily contaminated environments, any task where biological or chemical splash is a real possibility, that is full ensemble, no exceptions. The category assessment is not a bureaucratic exercise. It is the decision that determines what stands between you and the contamination you are about to work in.

Here is a scenario that plays out regularly. You arrive at a job and the homeowner is standing at the front door watching. You and your offsider are gearing up outside, and the homeowner says something like, "Do you really need all that gear? It is just a bit of water from the toilet." That is your cue to explain, calmly and without making them feel foolish, that what looks like a small amount of water from a toilet is classified as a high-risk contamination source, and that the PPE protects both your team and their home. You are not tracking contamination through their hallway on your way to the bathroom. That dual protection point, protecting the worker and protecting the environment from the worker, is worth saying out loud, because it reframes PPE as something you are doing for the customer as much as for yourself.

Before you enter the contaminated zone, do a visual check on yourself and your offsider. Look at the wrist area where the glove meets the coverall cuff, is it taped? Check the respirator seal by cupping your hands over the mask and doing a quick positive and negative pressure check. Look at the goggles, are they the right type for the task, seated properly, no gaps at the sides? Check that the coverall zip is fully closed and the hood is seated correctly. This takes about ninety seconds and it is the difference between a system that works and a system that has a hole in it. A contaminated coverall worn by a tech who walks from the work area into the clean area without doffing correctly is not a protected worker, it is a contamination source on legs. The whole point of the ensemble falls apart if the doffing procedure is not followed, but that starts here, with getting the donning right in the first place.