[donogh]

There are plenty of commercial air purifiers that will at least trap SARS-CoV-2 particles, and they can be added to air conditioning systems.

The IQAir HealthPro Plus, which can be bought for $899[1], filters particles as small as 0.003 microns (Coronavirus is approximately 0.1 microns[2]). And their Perfect 16 product is designed for HVAC systems[3].

[1] https://www.sylvane.com/iqair-healthpro-plus-air-purifier.ht... [2] https://abcdust.net/how-large-is-a-corona-virus-virion-compa... [3] https://www.sylvane.com/iqair-perfect-16-air-purifiers.html