When comparing Peace lily vs Money Tree, the Slant community recommends Money Tree for most people. In the question“What are the best indoor plants?” Money Tree is ranked 2nd while Peace lily is ranked 4th.
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Pros
Pro Filters airborne toxins
Spathiphyllum was found effective for filtering benzene, formaldehyde, trichloroethyline, xylene, toluene and ammonia from its environment by the 1989 Nasa Clean Air Study.
Pro Low upkeep
Peace lilies prefer shade, and will grow under incandescent bulbs. They need water infrequently, and recover well if watering is delayed.
Pro Low maintenance
Cons
Con Moderately toxic
Spathiphyllum contains calcium oxalate, a severe irritant. Some individuals may suffer skin rashes from handling the plant. Ingestion causes burning and swelling of the mouth and throat, as well as nausea and vomiting. In pets, this can progress to kidney failure if left untreated. (Note that Spathiphyllum is not a true lily, and rarely lethal to pets.)