Filtro HEPA portatil para escuelas - Portable HEPA filter for schools, avoid COVID 3D-model almost 2 years 19 Lack Enclosure HEPA and VOCs Air Filter 3D-model almost 2 years 16 Hepa Filter Holder for LV-H132 filter and 140mm Fan 3D-model almost 2 years 15 Air Scrubber 3D-model almost 2 years 4 Covid Defence Mask - MOST RECENT VERSION 3D-model almost 2 years 4 Covid-19 Emergency Face Mask 3D-model almost 2 years 5 Nanohack mod (two filters + improvements) 3D-model almost 2 years 15 Coronavirus: Doctor!Doctor! - Portable HEPA Air Filter (Beta) 3D-model almost 2 years 7