Hi all. Can anyone tell me what's wrong with my plant pictured here? Many of the leaves are turning brown and overall seem droopy and dull. Thanks in advance!

Your Parlor Palm may be exposed to bright light or it may need more moisture. If it needs more moisture you can accomplish this by misting it or placing the container in a dish with water and pebbles. The pebbles will prevent water from touching the bottom of the container.

The mottled appearance on at least one of the fronds is a tell-tale sign of spider mites. Chances are they are on other fronds as well. Spray all leaf and stem surfaces thoroughly with a solution of water and liquid dish soap until the entire plant is dripping wet. Be sure to cover the bottoms and tops of the leaves with the spray solution.

Spider mites are often an indication of moisture stress around the roots. The moisture meter may be leading you astray. Water you Palm thoroughly as soon as the top surface of the soil is dry. Increasing the humidity is not a substitute for proper watering.

That was my first impression, spider mites.

Agree about spider mites. Insecticidal soap would be a much safer alternative than dish soap, which can contain detergents that are harmful to plants.

Regardless of pest issues, it's normal for palms to lose the older leaves, one at a time, as the trunk lignifies.

If it is a parlor palm (Chamaedorea elegans,) it is not a diva about humidity and the nickname "parlor palm" comes from the Victorian era, from the fact that it would stay alive in the dry air in a parlor heated by a fireplace (compared to other palms that are divas about humidity.)

I have used ordinary liquid dish soap for many years on many plant without any adverse effects. I do avoid antibacterial soaps and detergents intended for dishwasher use, however. I also have used insecticidal soap, but it is very drying to my skin and is a lot more expensive than ordinary dish soap.

To each his/her own.