Advice Please
Just moved into a new apt. There is a lot of dust and buildup on this insulation inside the AC unit. I have been having sinus and health issues when the unit runs. They said the unit is normal and nothing to be done and to leave it alone. I have not ran it in several days cause of the concerns. I vacuumed it the best I could. I’ve put a new filter in. Should I remove insulation myself and add new insulation? Should I tape over the insulation with 3m 1580P-S tape?