Dr. Ungar: “Wear a Mask…Now!”

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Dr Ungar Mask Request w
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6 COMMENTS

  1. Dr. Unger has an excellent point regarding viral loads. In fact one of the theories given by the CDC as to why so who have Covid get very sick while others in similiar shape have no symptoms is that they were exposed to varying concentrations of the viral load.

    That being said, being exposed repeatedly to small amounts of viral load does not equal a singular exposure to a large viral load.

    Additionally, the greatest spread of lethal covid cases happened during lockdown, even after allowing for the incubation period.

    Viral load is one of the theories why many viruses are seasonal. People stay indoors in the winter ( even in warm climates it is rainy season). This allows the virus to concentrate in one area.

    Additionally sunlight is detrimental to the virus which lowers the viral concentration .

    Another issue not discussed enough is that air conditioning works very differently than heat. AC pulls in outside air thereby dilluting the concentration of viruses and pathogens indoors. Heating on the other hand, works in a closed system recirculating the indoor air.

    Even in wether like we have now, where some are running AC, it is not running as often as it does in peak of summer, diminishing its positive impact.

    So I agree with the threat an additional viral load creates, I don’t know if the reason we may be experiencing exposure to increased viral load is the same as was speculated in this article, or if the solution to address the issue should be the one proffered.

  2. As an hvac specialist for over 30 years and indoor quality technician air conditioning does not pull in outside air only when designed to do so and most of the time the fresh air intake damper does not work. Other than the door opening there is no dilution of air. The actual system will continue to circulate air even when not calling for cooling as The thermostat is usually programmed on the on fan setting to get maximum comfort.The only 100 percent thing that will.kill corona in a system is a ultra violet germocidal light installed upstream in the ductwork ahead of the coil. They are expensive but guaranteed to work. You still need good prefilters in addition plus a change every 2 to 3 week. I have installed such systems in a shul previously.

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