Aerosol Knowledge and Main Control Methods

Aerosols are tiny solid or liquid particles suspended in the air — small enough to stay airborne for minutes to hours and to travel throughout an indoor space on ordinary air currents. Because we spend 80–90% of our time indoors, the aerosols in our buildings have an outsized effect on our health.

These particles matter because they carry things we do not want to breathe: fine particulate matter (PM2.5 and smaller), allergens, mould spores, and respiratory pathogens. The smallest fractions — PM2.5 and PM1.0 — are the most dangerous, because they penetrate deep into the lungs and can pass into the bloodstream, contributing to respiratory and cardiovascular disease over time.

There are four proven approaches to controlling indoor aerosols. First, source control — reducing what enters or is generated in the space. Second, ventilation — diluting indoor air with cleaner outdoor air, though this is limited where outdoor air is itself polluted. Third, filtration — physically capturing particles as air passes through a filter. And fourth, catalytic purification — actively neutralising pollutants rather than merely trapping them.

This is where D-Orbital Nano Oxide (DNO) technology stands apart. Rather than relying only on capture, DNO breaks down particulate matter, pathogens and gaseous pollutants — CO₂, CO, NO₂, SO₂, formaldehyde and VOCs — at 99.99% efficacy. Combined with real-time monitoring, it gives facilities a measurable, accountable way to keep aerosol levels consistently low.

For any organisation serious about indoor air quality, the most effective strategy layers these methods together: control the source, monitor continuously, and deploy medical-grade purification where it counts. That is the approach we design for every client.