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Life & fun · February 18, 2022

MT

Mitigating the spread of respiratory infections in indoor spaces

Hello HN, Almost 15 years into being a (rather quiet) user of HN, I am thrilled to write my first Show HN post! Early in the pandemic, we looked to devise a system that would drastically reduce the risk of spreading Covid-19 when people gathered in a room. The system would need to disinfect the air rapidly to keep the concentration of virions in the space low enough so the risk of cross infection would be drastically cut [1]. It became clear that an effective system would need to draw air away from the breathing space so that the exhaled air from an infected individual would not impinge upon…

Mitigating the spread of respiratory infections in indoor spaces launched on February 18, 2022 with 10 votes, #1,100 of 2,645 launches that month and more than 75% of that year's launches.

In plain words

This system reduces respiratory infection spread in indoor spaces by capturing exhaled air away from the breathing zone and rapidly disinfecting it before recirculation. Designed during the pandemic, it lowers airborne virion concentration to minimize cross-infection risk when people gather indoors. The technology draws air from occupied spaces through a disinfection stage that inactivates pathogens like SARS-CoV-2, preventing buildup of infectious particles in shared rooms.

written from the facts on this page · September 2026

From the sources

In the maker’s words, at launch

Hello HN, Almost 15 years into being a (rather quiet) user of HN, I am thrilled to write my first Show HN post! Early in the pandemic, we looked to devise a system that would drastically reduce the risk of spreading Covid-19 when people gathered in a room. The system would need to disinfect the air rapidly to keep…

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