28. Philodendron
It’s hard for Philodendron to have only one item on this list, as they include a truly massive family of hundreds of different colors, leaf shapes, and growth habits. Philodendron’s heartleaf is a standard breed that looks quite similar to a pothos and has the same care requirements. Furthermore, Some rare philodendrons, like the pink princess, can sell for $ 200 and have gorgeous bubbles on the leaves! Philodendron, especially large leaf varieties, are excellent oxygen. There are philodendrons suitable for almost every lighting situation and care need, so this massive family is full of great filters.
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