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Sanitation & Climate
The unglamorous systems that make a shelter livable — waste, humidity, heat, and cold.
Start here · Pillar guideLiving Conditions Underground
Managing waste, humidity, and temperature so a shelter stays healthy and livable.
Composting & Incinerating Toilets
Buyer’s GuideWaterless toilet options for shelters compared on capacity, power, and maintenance.
Humidity Control & Dehumidifiers
Buyer’s GuideKeeping condensation, mold, and rust out of a sealed underground space.
Heating & Cooling for Enclosed Spaces
Buyer’s GuideSafe temperature control underground — including critical combustion-safety warnings.
Hygiene Without Plumbing
Buyer’s GuideStaying clean — and healthy — when there is no running water or sewer.