Quote:
Originally Posted by Rain Man
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I would be super skeptical. The problem is that it treats the air drawn into the duct. If a person infected with covid sneezes up a room, it will infect others in the room on its way back through the ventilation system, long before the air containing the infected airborne particles has a chance to reach the special filter. By the time the air recirculates to that filter, it's going to have already infected people or would be dead. It doesn't stay alive airborn long enough for this to be of practical use in my opinion. Especially for larger work areas with infinitely more air volume.