The move to R-454B matters for Ogden HVAC services because it is an EPA-acceptable refrigerant for certain systems

https://riverxmdi944.novacrestiq.com/posts/what-full-service-hvac-means-for-an-ogden-home-3

The move to R-454B matters for Ogden HVAC services because it is an EPA-acceptable refrigerant for certain systems, but it is mildly flammable and can only be used in equipment specifically designed for it.