“…During the first two years of the COVID-19-pandemic, a vast amount of papers report or investigate AM of personal-protective equipment such as face shields, face masks and respiratory filters (Bharti and Singh, 2020;Celik et al, 2020;Fillat-Goma et al, 2020;Gomes et al, 2020;Rendeki et al, 2020;Sinha et al, 2020;Wierzbicki et al, 2020;Zhang et al, 2020;Aydin et al, 2021;Li S. et al, 2021;Longhitano et al, 2021;Mathew et al, 2021;Sherborne and Claeyssens, 2021;Singh et al, 2021;Spake et al, 2021;Sterman et al, 2021;Wang Y. et al, 2021). One main advantage in the medical field is that AM can strongly help overcome shortage (Bishop and Leigh, 2020;Tarfaoui et al, 2020), amongst other things by supporting or changing the supply chain (Guttridge et al, 2021;Guvener et al, 2021;Ibrahim et al, 2021;Singh et al, 2021). Another advantage pays off best in remote regions, where cheap and on-site production (e.g., of prostheses) can facilitate access to healthcare (Ishengoma and Mtaho, 2014;Culmone et al, 2019).…”