I recently took a train across state to go on a short business trip.
It was about a 3 hour train ride.
And I have to tell you that I did not want to get off that train! The air quality was so great it really blew my mind. Usually while on trains or any other kind of public transportation the air quality is bad. But not on this train. On this train the air quality was so great that one would have thought that they had something like a whole home air purification system on this train. I know that was not the case, but it sure felt like it! On top of the great air quality that they had they also had really great air conditioning. It was a hot day when I took this train, and I was also not expecting the top quality air conditioning that was there. This train really cared about the indoor comfort of the people riding it. This is a rare thing. I guess maybe because the train also traveled long distance and had sleeper cars. Much like staying at a hotel if you were on it for a week or something. So I guess now that I think about it, maybe that is why they take pride in the air quality as well as the air conditioning. I bet on cold days in the winter time months of the year they also take pride in their heating as well. They would have to because if the air conditioning is this good the heating will be the same.
New HVAC systems