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  • Users: edtpro
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  1. edtpro

    What Exactly Is Positive or Negative Pressure??

    We provide maintenance and facility management for healthcare facilities throughout the southeast. I am NOT an engineer, so I apologize if my question doesn't rise to the technical level it should. Please forgive. My question involves checking ventilation for ORs, Procedure Rooms, Soiled Rooms...
  2. edtpro

    REQUIRED TOILET ACH in AIA GUIDELINES

    The AIA/FGI Guidelines Ventilation table lists toilet rooms in hospitals as requiring 10 ACH at negative pressure. Is this for general toilets only? Does it also apply to toilet rooms inside negative pressure isolation rooms? If not, is there no/any ACH requirement for toilets inside negative...
  3. edtpro

    Total CFM with VAV Master Slave

    Our company does environmental testing for medical and surgery centers and I've run across something I need some help understanding. I have an OR that according to the plant ops dept has a master/slave VAV set up with the master reporting supply of about 1100 CFM and the slave reporting about...
  4. edtpro

    State Codes vs AIA Guidelines

    I am still new to this forum and have a newbie question. Our company does environmental monitoring in medical facilities that sometimes takes required ventilation rates into account. We've been going by the "AIA Guidelines for Healthcare..." as a general guide, but realize some facilities are...
  5. edtpro

    Interpretation of AIA 2006 Healthcare Guidelines

    I need some help interpreting the following: On page 120 in the green appendix box it states that the recommended air changes for an operating room is 20 - 25. But in table 2.1-2 on page 130 it seems to indicate a different recommendation of 15. Can someone help me understand the reason for...
  6. edtpro

    NC code for O.R.s

    Does anyone know the required number of ACH required for OR's in NC. I've read 25 and then 15 per AIA.
  7. edtpro

    Exhaust Only Air Changes

    Our company does environmental testing in medical settings for a variety of chemicals. A debate has come up I need some guidance on. If I have a room that has either ONLY supply or ONLY exhaust, can air changes per hour be calculated using the standard N=60Q/Vol? I have an building manager...

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