Indoor Air Quality (IAQ) has become a major topic since Covid. The discussion is not only about killing virus’s, but overall health of the occupants. Killing a virus, but leaving smelly or particulate laden air is not acceptable either. Solve YOUR problem, not someone else’s! There are options out there, some only kill virus’s, others will only eliminate odor, few will eliminate particulate and kill virus’s. You might need multiple devices! Note that I have been saying KILL virus’s, not trap or filter them. There are many arguments for killing them as opposed to trapping them live, but that is for another day. How do we accomplish this without greatly increasing out energy usage? Get the energy usage numbers from the manufacturer, some have fans to draw air into the unit, that obviously increases energy usage. Don’t install more units than necessary, but install what will fix YOUR problem. Which technology? Again, look at your needs, spaces, aesthetics and make that call, weather it it filters, UV lights, Advanced Active Photocatalytic Oxidation (AAPO). Look at independent studies of the technology, what is its efficacy? Has it been tested against other technologies? As FM’s, we have a responsibility to the occupants of our buildings to provide a healthy environment. Do your homework.