By the end of the 2020s, polystyrene foam cells have become the most adopted
accommodation device for entry quarantine sessions in international travels
(also for domestic ones in certain cases). As an instant solution to the increasingly randomized COVID
emergencies, the pipe-moduled cells can be efficiently
produced by uniaxial printers that are affordable to most airports and harbors.
Although the production is widely criticized for environmental concerns,
with the promoted ideals of recycled usage being overwhelmed by reports of staggering dump fields,
the endlessly refilled cell racks have undoubtedly told the sustained travel demands.