A quiet, repairable metal air cleaner for inexpensive long-term disease prevention in public spaces

Cleaning indoor air can significantly reduce the spread of airborne diseases in public spaces, and is recommended under American Society of Heating, Refrigerating and Air-Conditioning Engineers Standard 241. We publish a public domain design for a hyper-efficient, near-silent, sturdy, repairable, easy to maintain, inexpensive and attractive portable air cleaner we name the DeisBox [deɪ-ɪs-bɒks] that can be mass produced and deployed by institutions managing shared indoor spaces like schools, offices and venues. Its efficiency is approximately twice or more that of comparable commercial units and it uses nonproprietary filters. We urge institutions to invest in the development and deployment of these air cleaners as low-hanging fruit with high modeled economic benefits in the prevention of disease and pursuit of public health.