1. Everything About Compost Toilets
  2. 02. How It All Works
  3. Tech & Electrical | OGO™ ORIGIN Compost Toilet System

If There’s No Odor, Why Do You Need a Fan

Because composting needs airflow—not air fresheners.

In the OGO™ ORIGIN Compost Toilet System, the fan isn't for odor. It’s there to ventilate—to move air, manage moisture, and keep the composting process working exactly as it should.

Here’s why it matters.


Why the Fan Matters

Proper ventilation is what keeps the composting environment healthy. The fan plays a central role in this, helping to:

  • Remove excess moisture from the solids bin

  • Prevent waste from clumping or going anaerobic

  • Ensure airflow for aerobic microbes to thrive ( like yeast in bread dough)

  • Speed up drying and decomposition

  • Maintain a low-maintenance, odor-free system

In short, the fan helps everything inside the bin stay balanced and functioning at its best.

Quick Tip: Since the fan runs continuously, it is a great indicator if your unit is hooked up correctly to the power source.


Built to Run Nonstop

The fan is designed to run continuously—quietly and efficiently in the background. It keeps the air moving so your compost stays light, dry, and active.

Standard fan specs:

  • Voltage: 12V

  • Current: 0.02A

  • Power draw: ~0.48Ah per day

  • Noise: 14 dBA (virtually silent)

  • Airflow: 4.3 CFM

  • Lifespan: 40,000 hours

  • Certifications: CE + RoHS compliant


Turn Sound On. Hear the Difference.

Standard Fan on the left vs High CFM Fan on the right


Need More Airflow?

The standard fan is ideal for most setups, but in some environments, extra ventilation helps:

  • High humidity (boats, tropical climates, wet baths)

  • Enclosed installs (cabinet, hidden drawer, tight corner)

That’s why we offer a High-CFM Fan Upgrade:

  • Boosts airflow for faster moisture removal

  • Prevents heat and humidity buildup in tight spaces

  • Improves compost drying in low-vent environments

It’s an easy upgrade that gives your system the support it needs in more demanding conditions.


Final Word

The fan in your OGO™ ORIGIN isn’t about scent—it’s about science. Composting requires air, and the fan delivers it.

It runs quietly, draws little power, and makes a big difference in long-term performance.

So even if it doesn’t smell, keep the fan running. That’s what keeps the system composting cleanly, consistently, and efficiently.