Área Bancaria, the banking district, brings together banks, insurers, professional firms and corporate towers. Office hours are clearly set, occupancy is dense, and each building’s security team controls access. It is about 4 km by road from the Climatiza office, in an approximate calculation.
A typical floor spreads the air through many diffusers and grilles, and each one is fed by a duct branch, so the dirt in one branch can repeat on every floor. With Panama’s humidity, the dust inside does not stay dry for long. That is why the work goes floor by floor and entry is coordinated with security.
Data point: In an air system that looked clean to the naked eye, 10⁵ to 10⁶ viable bacteria per cm² were counted on the coil fins (Hugenholtz and Fuerst, 1992). It is a case measured in a single system, not a general figure, which is why the camera looks inside before deciding.