Clean Door Products & Solutions CDS 4000 – Hands-free Door Opener for Privacy Restrooms The CDS 4000 is a hands-free exit-only door opening system for privacy or locking restrooms. It’s also the only automatic door operator that maintains ADA compliance without power. That makes it the ideal solution for locking restrooms in public health care facilities, including hospitals and clinics. This system retrofits easily into existing doors and offers clear advantages for new construction. The low-energy power operator is a slow-opening mechanism that features heavy-duty components for long-lasting performance.