It could be bits of corrosion?

 

Ice particles. Normal in high heat/high humidity conditions (like during the monsoonal season).
It is highly unlikely that the evaporator is corroding and coming apart.

 

But ice particles would melt. These are like little flakes of white dust or something that remain in the car/vents, until I wipe them away.

 

Did you bother to check your cabin air filter????

 

I did, yes. I don’t see any of these particles in the filter., or surrounding areas.
I’ve been in Vegas for the last year and a half, but only this summer did I notice this issue when running the air conditioning.

 

I did, yes. I don’t see any of these particles in the filter., or surrounding areas.
I’ve been in Vegas for the last year and a half, but only this summer did I notice this issue when running the air conditioning.

Are you able to capture any of the white flakes and inspect them using a 10x magnifier?

I ask because perhaps it is actually from some left over adhesive paper label on an internal blower channel or port. If it were to appear to be paper on inspection... that could very well be what is causing it. In any event, a better understanding of what the actual material is in those white flecks probably would help you isolate the cause.

Good luck putting the hammer to this mystery.

 

I wonder if the cabin air filter is disintegrating?

 

It didn't look like it, but it's about 6-7 months old, and could probably be changed. I think the current one is STP brand

 

Replaced cabin filter today. Waiting for results, since there's probably leftovers in the vents.

 

Definitely keep us posted!

 

Still seeing some particles coming out for the first 30 seconds or so when running AC.
This is after removing old the cabin filter & running AC on high for a few minutes AND installing new filter and running AC, for about the last week. Not sure there would be that much debris left over from the old filter, if that was the issue.