Dry air from idling?

While it's not really a dry air thing but more of a air quality thing have you changed your cabin air filters recently?

 

A/C works by removing moisture from the air to no more than 16% humidity... Arizona probably doesn't have even that much moisture in the air to begin with... So dry hot air + A/C = really dry cool air.

 

A/C takes any humidity out of the air. If there is hardly any air, it will remover a lot of it.

As mentioned, start with the changing the filters.

Also think about swamp cooler or mister to get some humidity up.

 

An easy humidifier: wet a towel and hang it up somewhere in the cab.

 

Ill trade u. My arizona blood needs dry air. I will idle my truck even if it 55 degreees but humid. I dont do humidity.

 

Probably not cool it, but one would definitely add to you humidity level


Edit: on 2nd thought. When i had to get a sleep apnea machine, it had a humidifier built into it. You have to add water to it every night. Maybe look into something like that.

 

Crack the windows to keep some fresh air in might help some.