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DIY Guide
Build your own atmospheric water collection system for ~$50
🌱 DIY Sandwich Filter Net
Multi-layer mesh that captures fog/dew AND filters water simultaneously. No electricity. Anyone can build with local materials.
Materials List
Layer 1: 40% Shade Cloth (2m × 2m)$5-8
Purpose: Fog capture + debris | Replace: 2-3 years
Layer 2: Mosquito Netting (2m × 2m)$3-5
Purpose: Particle filter | Replace: 1-2 years
Layer 3: Cotton Fabric (2m × 2m)$4-8
Purpose: Bacterial filter | Replace: 6-12 months
Layer 4: Activated Charcoal (1kg)$5-10
Purpose: Chemical removal | Replace: 3-6 months
Layer 5: Cotton Fabric (2m × 2m)$4-8
Purpose: Inner barrier | Replace: 6-12 months
Layer 6: Fine Mesh (2m × 2m)$3-5
Purpose: Structure | Replace: 1-2 years
Additional Components
Frame
Bamboo/PVC poles (4× 3m)
$8-15
Gutters
PVC pipe (cut lengthwise)
$3-5
Storage
20L bucket with lid
$3-5
Fasteners
Rope, wire, clips
$3-5
Total Cost Breakdown
~$50
Average total cost
Materials:$27-47
Frame/Structure:$8-15
Hardware:$8-13
Range:$43-75
Performance by Humidity
🌫️
High Humidity (>70%)
10-20 L/day
🌤️
Moderate (40-70%)
5-10 L/day
☀️
Low Humidity (<40%)
2-5 L/day
Key Advantages
✅Zero barrier to entry - $50 total cost
✅No electricity needed - Fully passive
✅DIY friendly - Basic sewing skills only
✅Dual function - Captures AND filters
✅Local materials - Available everywhere
✅Scalable - Add more panels for more water