$ACB ok I m out as well moving to. $OPTN and $INPX. 
Inpixon to Provide Its CO2 Sensors to Help Identify COVID-19 Infection Risk
February 11, 2021, 6:30 am
Inpixon Partners with Unitronic to Distribute CO2 Sensor Modules for Indoor Air Quality Measurement

Research Supports Using Carbon Dioxide as a Proxy of SARS-CoV-2 Concentrations Indoors
<ticker> ok i m out as well moving to . <ticker> and <unknown> <company> to provide its <company> sensors to help identify covid - <number> infection risk february <number> , <number> , am <company> partners with unitronic  to distribute <company> sensor modules for indoor air quality measurement research supports using carbon dioxide as a proxy of sars - cov - <number> concentrations indoors