## 5 Results
Thus, the previous organizational bottleneck was eliminated, and the overall process improved as the orders could be attended in real-time and the fabrication units could establish defined timetables and plan their activity carefully. This helped to increase the productivity and therefore reduce the delivery times, as well as to reach a greater number of towns in the region. A further advantage of the web system was the possibility of attending requests from remote locations, small towns, or villages. In the initial model, as orders were centralized in Toledo following a protocol, which included formal communication, there were barely requests from small towns or villages and most of the orders were from highly populated areas. As collected in Table 4 the number of destinations markedly increased from 37 to 242. Consequently, changing to the web system facilitated access to any individual no matter the location, facilitating direct interaction between the fabrication unit and the end-user. Moreover, at this stage a new element was manufactured: the ear-savers which, as mentioned above, is not a protective item, but improves the well-being of the healthcare professionals. This new product further increased the number of requests, and the number of 3D parts per request because some of them included face shields in addition to ear-savers. Table 6 shows the relation between production and demand in each province corresponding to the second stage. As can be seen, each fabrication unit attended preferentially the requests made in their province. The net flux \((\Delta[(1)-(2)]\) and \(\Delta[(3)-(4)])\), Table 6) shows as the provinces with demands above their capacity for face shields were supported by Albacete, which remained as the campus with the highest production capacity (see Figure 11). The analysis of the PPE flux reveals Ciudad Real, Cuenca, and Toledo as receiving 3D parts by the top producer Albacete. Ciudad Real (224%), Cuenca (288%) and Toledo (115%) increase their face shield requests in the decentralized model compared to the initial stage. However, the number of face shield requests in Albacete decreased by 59% during the second stage, which implied that most of the requests were already met during the initial stage, and allowed to back the other provinces up. \begin{table}
\begin{tabular}{c c c c c c c} \hline \hline \multirow{2}{*}{**Province**} & **Face Shields** & **Face Shields** & **Ear-Saver** & **Ear-Savers** & \multirow{2}{*}{**\(\Delta[(3)-(4)]\)**} \\  & **Manufactured** & **Request** & & **Manufactured** & & **Request** \\  & **(1)** & **(2)** & & **(3)** & **(4)** & \\ \hline Albacete & 3254 (50.5\%) & 1370 (21.3\%) & 1884 & 5364 (49.6\%) & 3051 (28.2\%) & 2313 \\ Ciudad Real & 1920 (29.8\%) & 3208 (49.8\%) & \(-\)1288 & 3678 (34.0\%) & 4577 (42.3\%) & \(-\)899 \\ Cuenca & 173 (2.7\%) & 980 (15.2\%) & \(-\)807 & 650 (6.0\%) & 1508 (13.9\%) & \(-\)858 \\ Toledo & 1093 (17.0\%) & 882 (13.7\%) & 211 & 1125 (10.4\%) & 1681 (15.5\%) & \(-\)556 \\ Sum & 6440 (100.0\%) & 6440 (100.0\%) & & 10,817 (100.0\%) & 10,817 (100.0\%) & \\ \hline \hline \end{tabular}
\end{table} 
Table 6: Production and requesting of face shields and ear-savers per province in the decentralized distribution model. As per the individual PPEs (Figure 12), Albacete and Toledo had an overproduction of face shields, whereas Ciudad Real and Cuenca could not meet their demand. The situation was similar in the case of the ear-savers, as there was an overproduction in Albacete and Ciudad Real, whereas Toledo and Cuenca were underproducing (see Figure 13). However, the analysis for the deliveries for both products reveals a homogeneous distribution, mainly focused in the capital cities where the main hospitals of the region are located, except in the case of the Toledo province, with two equally populated cities: Toledo and Talavera de la Reina. Figure 11: Flux map of the PPE production and delivery in a decentralized organizational model.