Outdoor plant boxes are not just decorative; they can also serve as natural air purifiers by hosting plants that absorb toxins. Some of the best plants for toxin removal include:

1. Spider Plant (Chlorophytum comosum) – Known for its ability to remove formaldehyde and xylene, this hardy plant thrives in outdoor boxes with indirect sunlight.

2. Peace Lily (Spathiphyllum) – Effective against ammonia, benzene, and formaldehyde, peace lilies prefer shaded areas and moist soil.

3. Snake Plant (Sansevieria trifasciata) – A low-maintenance option that filters out benzene, formaldehyde, and trichloroethylene, even in low-light conditions.

4. English Ivy (Hedera helix) – Excellent for reducing airborne mold and formaldehyde, it grows well in partial shade and cooler climates.

5. Bamboo Palm (Chamaedorea seifrizii) – A powerful remover of benzene and trichloroethylene, this palm thrives in bright, indirect light.

By incorporating these plants into your outdoor plant boxes, you can enhance air quality while adding greenery to your space. Regular watering and proper sunlight will ensure their toxin-removing efficiency.