# The 4-Hour Window: Inside Life-Critical Organ Transport
When it comes to transporting human organs for transplantation, time is the ultimate constraint. For organs like hearts and lungs, the cold ischemia time—the time the organ can survive outside the human body under refrigeration—is often less than 4 to 6 hours.
The Emergency Protocol
iCold manages a dedicated 24/7 medical transport hotline. When a call comes in, the process is immediate:
- **Pre-Cleared Corridors**
- Our dispatch centers coordinate with customs and highway patrols along the route to ensure pre-clearance and green corridors.
2. **Specialized Vacuum Isolation** Organs are transported in certified vacuum-insulated containers filled with preservation solutions, maintaining a strict +2°C to +4°C range.
3. **Dual-Path Tracking** We monitor the shipment via two independent satellite systems to provide minute-by-minute location and temperature telemetry to the surgery team.
At iCold, we treat medical cargo with the utmost urgency, knowing that lives depend on every single kilometer.