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  1. #14
    Join Date
    May 2014
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    Bay Area California
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    I did some work in a hospital quite some time ago. The HVAC was 100% outside air and the building was slightly positive. I would think a hospital with negative pressure would be a recipe for disaster.


    Quote Originally Posted by pecmsg View Post
    Hospitals ARE negative pressure by design. The closer you get to the nasty bugs the more negative it gets.


    You need toe a little more specific!
    If you were a real tech, you'd solder a relay on that board and call it good to go.

    I do a triple evac with nitro to remove non condensables.

    I use 56% silver on everything except steel.

    Did you really need the " If you were a real tech " ??

  2. Likes Spitz liked this post
  3. #15
    Join Date
    Feb 2016
    Location
    Louisburg Kansas
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    Use the line at will bradlukeD. I think the difference in the negative buildings we both have seen is location in the country. In Kansas we have some humid days but not like Florida. How often do you see a 78 or 79 F wet bulb? The cooling towers here are designed for 78 WB and some for 79 F. Those WB'S are rare here.
    No man can be both ignorant and free.
    Thomas Jefferson

  4. #16
    Join Date
    Mar 2013
    Location
    Treasure coast, FL
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    Quote Originally Posted by pecmsg View Post
    Hospitals ARE negative pressure by design. The closer you get to the nasty bugs the more negative it gets.


    You need toe a little more specific!
    Hospital rooms are typically designed to be negative compared to the hallways (to prevent the spread of airborne pathogens), but I think overall they want a very slightly positive building because that ensures the fresh air coming into the building would be conditioned.

    Sent from my Moto Z (2) using Tapatalk

  5. #17
    Join Date
    Feb 2016
    Location
    Louisburg Kansas
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    Hospital room pressures depend on how the room is used. In one case you are trying to prevent the patient from contacting a bug. In another case you are trying to prevent them from infecting others.
    I never saw a negative operating room.
    No man can be both ignorant and free.
    Thomas Jefferson

  6. #18
    Join Date
    Aug 2019
    Location
    Central Florida
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    71
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    Wayne is correct . I also have never seen a negative operating room ( not on purpose anyway )

  7. #19
    Join Date
    Jan 2010
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    Quote Originally Posted by bradluke0 View Post
    Wayne is correct . I also have never seen a negative operating room ( not on purpose anyway )
    Now that would definitely be a recipe for disaster

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