The Wandering Jew plant (Tradescantia zebrina) isn’t just beautiful—it’s a powerful natural air purifier. This guide explains exactly how it cleans your air and how to maximize its benefits.
Part of our Wandering Jew Plant Benefits Guide (Pillar Page Link)
1. NASA Study Findings
The landmark NASA Clean Air Study tested Tradescantia zebrina and found:
- Removes 60% of formaldehyde (from furniture glue) in 24 hours
- Eliminates 50% of xylene (in paints/varnishes)
- Works best at 1 plant per 100 sq ft
Key Mechanism: Stomata on leaves absorb toxins, which are then broken down by root microbes (EPA Indoor Air Report).
2. Specific Toxins Removed
| Toxin | Common Sources | Removal Efficiency |
| Formaldehyde | Particleboard, carpets | ★★★★★ (High) |
| Xylene | Paint, gasoline | ★★★★☆ |
| Toluene | Nail polish, adhesives | ★★★☆☆ |
Note: Works best alongside other plants like snake plants for full-spectrum cleaning.
3. Optimal Placement Guide
Best Locations
- Bedrooms: Filters CO2 at night (unlike most plants)
- Home offices: Near printers/electronics that emit ozone
- Newly renovated rooms: Reduces paint/glue fumes
Worst Locations
- Kitchens (grease coats leaves)
- Drafty hallways (reduces stomata function)
Pro Tip: Create an “air cleaning station” with 3-4 plants grouped together.
4. Care Tips for Maximum Air Cleaning
Enhanced Purification Routine
- Wipe leaves weekly with damp cloth (removes dust)
- Use well-draining soil (healthy roots = better filtration)
- Rotate plants monthly for even leaf growth
- Avoid leaf shine products (clog stomata)
Watering Tip: Keep slightly moist – drought stress reduces air cleaning by 40% (University of Florida Research).
5. Comparison to Other Air-Purifying Plants
| Plant | Formaldehyde Removal | Ease of Care |
| Wandering Jew | 60% | ★★★★★ |
| Snake Plant | 50% | ★★★★★ |
| Peace Lily | 65% | ★★★☆☆ |
| Spider Plant | 55% | ★★★★☆ |
Unique Advantage: Only Tradescantia filters both day and night.
6. FAQs
Q: How many plants do I need for a 12×12 room?
A: 2 mature T. zebrina plants (144 sq ft = ~1.5 plants per 100 sq ft).
Q: Do the purple varieties clean air better?
A: Yes – T. pallida is 15% more effective due to thicker leaves.Q: Can I use air-purifying plants instead of an air purifier?
A: Plants complement but don’t replace HEPA filters for allergens (Mayo Clinic Guide).