Is your peace lily placed in a light partial shade?
Is it planted in a pot with a well-drained, all-purpose potting soil?
Have you been watering and misting your peace lily regularly using filtered water?
Is the room temperature somewhere in the range from 65 to 80° F?
Have you been fertilizing your peace lily excessively?
Have you been repotting your plant annually?
Are you keeping pests away from your peace lily?
Peace lilies prefer light partial shade and can tolerate fluorescent lights. Some have been known to thrive in rooms with no windows at all. Yellowing leaves indicate that the light is too strong, and brown leaves or streaks indicate scorching from direct sunlight. Consider placing the plant six to eight feet away from the north or west-facing window.
Consider changing your peace lily potting soil. Peace lilies like a rich, loose potting soil containing plenty of organic material. These plants are native to tropical canopy conditions where the soil is rich with deteriorating plant material.
During the summer, water, and mist peace lilies frequently because they thrive with higher humidity, such as that found in the rainforest. In winter, reduce watering but never allow the soil to dry out. If your water is highly chlorinated, use filtered water.
Peace lilies prefer moist warmth. Avoid cold drafts and temperatures below 55 degrees F, since the plant will die with cold temperatures. The ideal temperature range is 65 to 80° F.
Peace lilies are not heavy feeders, so fertilize only occasionally. To encourage spring and summer growth, fertilize every 6 weeks or so with a balanced houseplant fertilizer starting in late winter.
Repotting annually in the spring is good for the peace lily, as the plant will appreciate the refreshed soil.
Good job! You are taking good care of your peace lily.
Compared to other house plants, the peace lily is relatively immune to insects and diseases. However, it can get attacked by spider mites, aphids, scales, and mealybugs, so make sure these tiny insects stay away from your peace lily.
https://www.almanac.com/plant/peace-lilies
https://www.thespruce.com/grow-peace-lilies-1902767
https://www.proflowers.com/blog/peace-lily-care

Sreten null
Hi! I’m Sreten Filipović. I graduated from the Faculty of Agriculture at the University of Belgrade, with a master's degree in Environmental Protection in Agricultural Systems. I’ve worked as a researcher at Finland's Natural Resources Institute (LUKE) on a project aimed at adapting south-western Finland to drought episodes. I founded a consulting agency in the field of environment and agriculture to help farmers who want to implement the principles of sustainability on their farms. I’m also a founding member of the nonprofit organization Ecogenesis from Belgrade whose main goal is non-formal education on the environment and ecology. In my spare time, I like to write blog posts about sustainability, the environment, animal farming, horticulture, and plant protection. I’ve also published several science-fiction short stories.
You can find me on LinkedIn at https://www.linkedin.com/in/sreten-filipovi%C4%87-515aa5158/