https://vimeo.com/437942887
This lady tells her story at Methodist Hospital in San Antonio where she barely survived Covid.
Heating filters to kill air born pathogens with thousands of CFM passing over it is complex and energy-intensive. Think of the Megatons of coal burning. It would make sense to slow the air down which is a system re-design. Single speed central AC is a disaster in so many ways. Ducted central systems are common since building envelopes suck - bleed calories. Is this the end of tall buildings post COV? Now it’s clear the future is Ductless. For Off Grid we use the Fujitsu 12 or 15 RLS. In the EU there is a move to ban use of compressed gases in buildings. High-temperature combustion for forced air heat is a problem since it dries out the body’s defenses … the sinus. So perhaps it’s back to water as the medium for heat/cool. https://www.chiltrix.com/FAQ.html