Negative ions occur in nature, including near moving water. That makes the waterfall effect an interesting starting point for understanding ion generation. A car ionizer, however, uses an electrical process rather than splashing water.
What the output number means
SmogGo Novus has a specified negative-ion concentration of 3.8 million ions/cm³ at 5 cm from the device. The test report records 3.86 million ions/cm³ at that distance. The location of the measurement is part of the result.
Why distance matters
As ions travel, they can neutralise, interact with airborne particles or be lost to surfaces. Airflow, humidity, the emitter and the layout of the cabin affect distribution. A near-device reading cannot be converted directly into a concentration at the driver’s face.
Particle charging in the cabin
Ions can attach to airborne particles and alter their charge. Under suitable conditions, charged particles may combine or settle. Deposited particles still need cleaning, and a device’s ion count alone does not establish the removal rate for every pollutant.
Nature as inspiration
Splashing water can produce negative ions through the Lenard Effect. Natural concentrations vary by location and conditions. Comparing a waterfall measurement with an electrical emitter is useful only when the different measurement conditions are explained; more ions do not directly mean a fixed multiple of freshness.
A compact engineering choice
Novus brings ion generation to a direct 12V format without a mechanical fan, replaceable filter or artificial fragrance. Keep the outlet open to cabin air and follow the instructions. Explore the Testing & Measurements page for the laboratory outcomes and their stated conditions.
The practical routine remains simple: remove odour sources, clean affected materials and maintain appropriate ventilation. Novus is an addition to that routine, not a replacement for it.
Explore test measurements and conditions →
Further reading
Background references; these do not establish product-specific outcomes.