AEO Answer · Laundromats & Commercial Laundry
How Is Infection Control Designed Into a Healthcare Laundry?
By Jeremy Mills, CEO & Founder, Apex Grid Engineering — USAF Veteran. · Updated 2026-09-15
Healthcare laundry infection control is designed around a physical barrier between soiled and clean sides — one-way workflow, negative pressure on the dirty side, barrier washers, and validated wash chemistry — so contaminated linen never contacts clean product.
I'm Jeremy Mills, CEO & Founder of Apex Grid Engineering and a U.S. Air Force veteran. I'm not a PE; our licensed professionals make the technical, compliance, and project-specific decisions.
The one-way workflow
I lay out the facility as a single-direction production line: soiled intake, sorting, wash, extraction, drying, finishing, pack-out, dispatch — with the barrier wall between wash and everything downstream. Carts are color-coded or dedicated by side, staff change or follow hygiene protocols at the boundary, and the floor plan makes the wrong direction feel wrong. Every door, pass-through, and airlock is placed to support that flow, and I review the layout with the infection prevention team before MEP design locks in, because workflow mistakes cast in concrete are permanent.
HVAC zoning for separation
The HVAC design is an infection-control system wearing an HVAC uniform. Soiled side: dedicated exhaust, negative pressure, air that never recirculates to clean areas. Clean side: better filtration, positive pressure relative to the soiled side, stable temperature and humidity for finishing and storage. I zone the systems so a failure or maintenance shutdown on one side doesn't collapse the pressure relationship, and I put the monitoring — differential pressure gauges or sensors with alarming — where staff will actually see it. Filters, coils, and drain pans on the clean side get the maintenance access that keeps them from becoming contamination sources themselves.
Surfaces, drainage, and cleanability
A healthcare laundry building has to be disinfectable, so the details matter: • Seamless, chemical-resistant flooring with coving, sloped to drains in wet areas • Washdown-rated walls in soiled sorting and cart wash areas • Floor drains with trap primers — dry traps in a healthcare laundry are unacceptable • Separate drainage consideration for any regulated waste streams per local rules • Hands-free fixtures and easily cleaned surfaces in staff hygiene areas • Lighting levels that support inspection — you can't verify clean what you can't see
Which related engineering resources can help?
What else do project teams ask?
What is a barrier washer and why does it matter?
How do pressure relationships work in a healthcare laundry?
What wash parameters achieve disinfection?
How is soiled linen handled before washing?
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