Ask an Expert
Discuss My Needs
Discuss My Needs
Ask an Expert

Ask a Life Safety Expert / Ventilation

Keyes Life Safety

Our Life Safety educational resource hub is full of healthcare knowledge to help you be better informed of the changing world around you. 

Rather than sit back and act on decisions made by others, we are leading the charge as it relates to identifying best practices for Life Safety Code® and compliance. We have real people that give our clients real information that can be put into practice.

Interested in reading our experts' take on Life Safety? Then subscribe to our free blog below! We discuss readers' questions, share interesting observations from the field, and more.


Q: This question concerns isolation room negative pressure parameters. Our ICU isolation rooms have two sensors for air pressure; one located inside the room and the other located outside the …

Brad Keyes, CHSP | Jun 5, 2019

Q: We have two small processing rooms in a hospital where they clean and reprocess vaginal probes, using the chemical RESERT. Should these rooms be held to the same standard …

Brad Keyes, CHSP | Apr 24, 2019
SuitesVentilationHVACOperating Room

Q: I have a small 28 bed hospital with one OR suite. Within the OR suite are sterile rooms, a soiled room, and of course the Operating Room, etc. We …

Brad Keyes, CHSP | Mar 29, 2019
VentilationSterile Storage

Q: What are the ventilation, air exchange and air pressure standards for an area in a very old basement that is being used to sanitize equipment in a hospital facility? …

Brad Keyes, CHSP | Mar 20, 2019

Q: In the 1999 Edition of NFPA 99, it mentions for medical gas storage systems more than 3,000 cubic feet, if the door opens to an exit access corridor, louvered …

Brad Keyes, CHSP | Aug 15, 2018

Q: What are the ventilation requirements for the scope room in endoscopy? This is the room where the clean instrumentation is kept. A: It all depends if you’re talking about …

Brad Keyes, CHSP | Feb 20, 2017

Q: Are Bronchoscopy procedures to be performed in negative pressure rooms under all circumstances, or can they be performed in OR suites? Does the negative pressure rule only apply to …

Brad Keyes, CHSP | May 20, 2016

Q: Is there a code or standard that states how frequent the test intervals must be for air-exchange rates and air-pressure relationships in operating rooms, soiled utility rooms, and central …

Brad Keyes, CHSP | Apr 22, 2016

Q: The Centers for Medicare & Medicaid Services (CMS) standard §482.41(c)(4) states in their Interpretative Guidelines that hospitals must comply with the Facilities Guidelines Institute (FGI) for ventilation in anesthetizing …

Brad Keyes, CHSP | Oct 9, 2015

Q: What does CMS require as far as frequency of testing of air changes per hour (ACH) in hospitals? I see where we are supposed to test and know what …

Brad Keyes, CHSP | Sep 11, 2015
Q&AVentilationCeilings (Life Safety Code)

Q: We have decorative wood panels in our cafeteria ceiling which do not provide a seal to limit the passage of smoke. In fact, there are wide gaps between the …

Brad Keyes, CHSP | Mar 10, 2014

I was asked recently if the ventilation requirements for Endoscopy procedure rooms have changed recently, and the answer is yes. But the changes only apply to new construction, meaning you …

Brad Keyes, CHSP | Jan 10, 2013

Q: Is there a Life Safety Code regulation stating the need for 100% outside air for the lab HVAC system or where could I find the requirements that regulate this …

Brad Keyes, CHSP | Mar 1, 2011

Real people. Real solutions.

We help you be better informed of the changing world around you.  Our life safety blog answers your real world questions! 



Subscribe to Updates

We care and want to help.

We want to help coach, guide, and navigate you through all things Life Safety.