I now use Meguiar's APC in my gun.
I put 4oz of the APC in my gun and fill with water.
Smells OK and doesn't make me sick.
Does amazing work using this ratio.
Yesterday I cleaned a headliner, wow,is the word that describes to results in got.
The truck was parked on a shell road for a week,the owner accidentally left the rear window down,the interior was covered with white dust.
The DP cleaning gun makes my life much better in my shop.
A must have tool if you clean a lot of interiors.