Technology

The core technology is covered by US Patent No. 11,191,862, granted to Wellis Co., Ltd. in December 2021 and in force until 2035, with additional patents in South Korea, China and the European Union.

What the patent actually describes, and why it separates this from the devices buyers are warned about. The claim is specific: ozone is generated inside the unit to produce hydroxyl radicals — and the hydroxyls are what leaves the device.

That is a meaningful distinction. An ozone generator’s output is ozone: it fills the room with the oxidant and leaves it there to do the work. An ionizer charges particles so they clump and settle, which relocates them rather than breaking them down. Here the ozone is a reagent consumed in making something else, which is why Intertek measured only 0.002 to 0.006 ppm leaving the unit, against California’s 0.050 ppm limit for an air cleaner in an occupied space.

What the patent establishes is that this mechanism was examined against the prior art — ozone-releasing devices among it — and granted as a distinct invention. Read the patent.

WellisAir uses nature's "detergent of the atmosphere" to seek out both surface and airborne particles. Unlike filters, which can only clean the air that passes through the unit, WellisAir's unique proactive technology relentlessly targets contaminants wherever they are — in the air, on surfaces, even inside the walls and vents.

WellisAir's Hydropure Molecules steal hydrogen from microscopic contaminants. Removing a hydrogen molecule neutralizes the offending pollutant. The stolen hydrogen (H) is then joined with oxygen (O2) to form H20, which evaporates as completely harmless and clean water vapor without increasing the humidity.

WellisAir's smart monitoring technology continuously tests the air, alerting you to the presence of VOCs — and assuring you with a blue light once they've been neutralized.

A fair objection to all of this: a hydroxyl radical survives about half a second. How can anything that short-lived clean a whole room?

Because a hydroxyl does not disappear when it reacts — it converts. It takes a hydrogen atom from a pollutant molecule and becomes HO₂. HO₂ meets nitric oxide and converts straight back to OH. The radical is consumed and regenerated in a loop, and the loop is what does the work.

Measured in the atmosphere, that loop runs on a clock. A HOx radical is recycled every 28 seconds, and the reactive pool lasts about 108 seconds — roughly four cycles before the chain ends. The pool outlives any single radical by more than two hundred times.

Where this stops. These are figures for the outdoor atmosphere, not measurements taken inside a room, and not measurements of a WellisAir unit. The typical chain runs about four cycles — a real multiplier, not an endless cascade.

Source: Monks, P.S., “Gas-phase radical chemistry in the troposphere,” Chemical Society Reviews, 2005, 34, 376–395, p.380.