AC ineffectiveness causes, along with many other indoor comfort issues, excessive increase in humidity level. Here are 5 reasons behind this HVAC inefficiency and what you can do to prevent these.
5 Reasons behind AC Ineffectiveness in Removing Excess Humidity

1. Over-sized HVAC Unit
2. System Has Only On/Off
3. System Too Old to Remove Humidity
4. Setting Thermostat Fan to On
5. Negative Air Pressure
See the summary of this content here – HVAC Humidity & 5 Reasons Behind Air Conditioner Ineffectiveness…