Lawrence said:Nobody has proven it WON'T work.
It's not going to get where the mold/mildew/whatever is growing, as it will drain out the drain holes in the sheetmetal before ever entering the HVAC box. QED.
It is step #1 of a multi-part procedure:
Step #2 and beyond is repeating what has already been posted:
i.e.
*Install new Cabin Air Filter if there is one.
*While blower motor is on high, spray Lysol mist into air intake that Cabin Air Filter feeds.
*Find any air input ducts _INSIDE_ the vehicle, and spray Lysol mist into them with blower motor running at full speed.
END
None of this exonerates any of you from being nitwits.
OK, where did you ever post the above procedure? (which makes a hell of a lot more sense than pouring bleach into the cowl intake) Time to check you're meds, Larry, you're slipping into "semi-coherent ranting asshole" mode again.
nate