Discover how clean air can affect the quality process for you and the workplace from world leading experts.
We find out how controlling air can bring benefits to production plants and facilities, the health of people who work there, and bringing greater efficiencies to your final product.
We're also joined by experts from Camfil, a world leader in the development and production of air filters and clean air solutions, on what they are doing to keep air clean and safe.
Air filtration systems are often misunderstood until performance drops or maintenance costs spiral.
Many facility managers view these components as commodity items, yet this oversight leads to equipment failure and poor indoor air quality.
We decode the four essential filter stages required to protect building assets and human health. Jon Holmes, also known as the Filter Guy at Camfil, joins us to clarify the science behind the hardware. With over twelve years of experience, he brings practical insights to help facility managers navigate complex filtration requirements and reduce operational costs.
THINGS WE SPOKE ABOUT
The role of pre-filters as the first defense.
Preventing filter failure through structural integrity.
Protecting human health with efficient final filters.
Distinguishing between HEPA box and panel filters.
Why molecular filtration is necessary for VOCs.
GUEST DETAILS
Jon Holmes serves as a specialist at Camfil. He has spent over twelve years in the air filtration industry. His main skills include bridging engineering gaps and creating practical facility solutions. He is an expert in helping managers understand total cost of ownership.
https://www.linkedin.com/in/jonwholmes/
MORE INFORMATION
Hungry for knowledge? Camfil's Lunch & Learn programme is a tailored air quality training at your office - No travel, no hassle.
https://www.camfil.com/en-ie/support-and-services/trainings-and-education/lunch-and-learn
There is also a wealth of industry information on air quality and how to improve it on our website at camfil.com
Let’s Talk Clean Air is produced for Camfil by DustPod.io
QUOTES
It stops the really large particles from either fouling your coils or clogging up your more expensive final filter that really protects human health. - Jon Holmes
Structural integrity is key. Otherwise, what can happen is that filter essentially gets sucked into the fan. - Jon Holmes
How can you get air through something that's filtering literally everything in terms of particles? Yeah, a lot of surface area. - Jon Holmes
KEYWORDS
#AirFilterTypes#HVACFilterMaintenance#MolecularFiltrationGuide#IndoorAirQualityManagement
3 Aug 2026
HVAC Risk Assess
Budget constraints and limited space often force facility managers to compromise on air quality. This approach creates recurring costs and missed opportunities for optimising building performance. Facility teams must understand how to balance equipment constraints with the need for high quality air filtration.
We explore effective strategies for managing rooftop HVAC systems, navigating filter track limitations, and maximising maintenance labour efficiency. We also examine compelling evidence linking improved air quality to better cognitive performance and decision making.
We are joined by Jon Holmes, a filter specialist at Camfil with over twelve years of experience. Jon helps facility managers bridge the gap between complex engineering and practical, cost effective maintenance solutions.
THINGS WE SPOKE ABOUT
Why schools rely on rooftop HVAC systems
Challenges of one to four inch filter tracks
Maximising filter life with high quality investment
How air quality impacts cognitive performance
Using maintenance windows for better air solutions
GUEST DETAILS
Jon Holmes serves as a specialist at Camfil. He has spent over twelve years in the air filtration industry. His main skills include bridging engineering gaps and creating practical facility solutions. He is an expert in helping managers understand total cost of ownership.
https://www.linkedin.com/in/jonwholmes/
MORE INFORMATION
There is also a wealth of industry information on air quality and how to improve it on our website at camfil.com
Let’s Talk Clean Air is produced for Camfil by DustPod.io
CAO Mini-Series: Chess vs Air:
https://podfollow.com/camfil/episode/7d49e1164cc62ac171dfe8976e1b7e904272ce76/view
Enhancing Creativity With IAQ:
https://podfollow.com/camfil/episode/411b7c654f4917ecc19c3ea6fc0512a7d09f20eb/view
QUOTES
You could spend a little less money on day one, but just spending a little more on day one for a better filter that will perform better for longer. - Jon Holmes
Just 10 micrograms, which is incredibly small, increased the odds of people making mistakes by 26%. - Jon Holmes
As long as you have low average resistance to airflow, a really quality performance air filter, yeah, you can definitely get away with changing it once a year. - Jon Homes
KEYWORDS
#Rooftop#HVAC#FilterMaintenance#HighPerformanceAirFilters#CleanAirCognitiveImpact
24 Jul 2026
Avoid Filter Fails
Many facilities overspend on HVAC maintenance while compromising air quality due to simple, avoidable installation and monitoring errors. Costly inefficiency often stems from relying on subjective visual inspections rather than objective performance data.
This conversation provides a clear path to optimizing HVAC systems. We address common pitfalls, ranging from air bypass and incorrect orientation to the essential role of pressure drop monitoring.
We are joined by Jon Holmes, a Camfil specialist and industry veteran with over twelve years of experience. As a trusted expert on total cost of ownership, he offers practical engineering solutions to bridge the gap between complex standards and facility reality.
THINGS WE SPOKE ABOUT
Comparing filter efficiency via industry standards.
The dangers of air bypass in HVAC systems.
Correct vertical orientation for filter integrity.
Why pressure drop matters more than time.
Replacing visual checks with manometer readings.
GUEST DETAILS
Jon Holmes serves as a specialist at Camfil. He has spent over twelve years in the air filtration industry. His main skills include bridging engineering gaps and creating practical facility solutions. He is an expert in helping managers understand total cost of ownership.
https://www.linkedin.com/in/jonwholmes/
MORE INFORMATION
There is also a wealth of industry information on air quality and how to improve it on our website at camfil.com
Let’s Talk Clean Air is produced for Camfil by DustPod.io
QUOTES
The only true standards in the air filtration world for this kind of stuff is ASHRAE slash MIRV A standards - Jon Holmes
You could have the best filter in the world, but if it's not sealed properly, that's a big issue. - Jon Holmes
If the pleats are horizontal, not vertical, essentially what you're going to have is, again, it's not structurally sound. - Jon Holmes
The rule of thumb is two times the initial pressure drop - Jon Holmes
Pressure drop is objective, that's the key. - Jon Holmes
KEYWORDS #FilterBypassPrevention#HVAC#AirFilterMaintenance#FilterBypassPrevention#AirPressureDropData
Who has been a guest on Let's Talk Clean Air | Camfil
Names identified in recent episode analyses. Showing up to five guests.
Dr Marwa Zaatari
Carson Stephens
Dr John McKeon
Professor Bronwyn King AO
Mark Jewell
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2 ratings
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Podcast Authority Score: 55 / 100
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Engagement
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