If your home stays above 55% RH despite a properly working AC, you need a whole home dehumidifier. Common in oversized AC homes, well insulated new construction, and homes with high latent loads.

Quality units (Aprilaire E100, Santa Fe Ultra98) cost $2,200–$3,800 installed and pull 90 155 pints/day. They make a $30,000 home renovation actually feel comfortable.