2025-10-11 The most distinctive feature of a sanitary barrier washer is its double-door design. One door opens to the dirty/contaminated area (e.g., hospital soiled linen room, lab), and the other opens to the clean area. Laundry is loaded from the dirty side, and after the wash cycle is complete, it is unloaded from the clean side. This process eliminates the need to move contaminated laundry through clean areas, creating a physical barrier that prevents cross-contamination.