Hydroxyl - Filter-Based Air Purifiers

What that means:

• Filter-based technologies can only reach their theoretical maximum level of pollution reduction after some hours. However, well before that, new polluted air has already entered the room (typically, existing air is replaced by new air from outside at least once an hour).
• The filtered air they emit immediately mixes with existing, polluted air and is re-contaminated.
• Stratification (caused by warm air rising) and eddies (circling air) mean that some air in a room will never even reach the purifier.
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• HEPA and electrostatic filters remove bacteria and viruses from the air passing through them (but not all of the air in the room) but do not kill them. Untreated, those bacteria and viruses colonise the filter / plates making cleaning and replacement potentially hazardous.
• Particulates (such as pollen, dust) quickly settle on surfaces; all it takes is a person brushing past a sofa to recontaminate the room again.
• Only some types of pollutant are removed (typically only larger particulates), but those types not removed may also cause infections or allergic reactions or act as irritants.
• As filters don`t produce a hydroxyl cascade, they don`t clean surfaces or neutralising viruses, bacteria, mould or  pollens within the room
• While larger, more powerful, noisier fans can filter more air, in practical terms they can never overcome these failings.

The problem with rudimentary hydroxyl generators
(PCO, PECO, Photocatalytic)
In addition to the longstanding filter technologies, some manufacturers have produced air purifiers based on rudimentary Hydroxyl Radical technology.

While PCO / PECO / Photocatalytic devices share the wider scope of action of Airora, they lack our patented technology, which means that they cannot reliably cascade hydroxyls throughout a whole room and onto surfaces.

Consequently, these rudimentary hydroxyl based air cleaners rely mostly on exposing pollution to hydroxyl radicals within the device. As such they share the same shortcomings (see above) as all other filter-based air purifiers.

Sadly, there are grossly misleading claims being made for this basic technology. Such claims mislead by focusing on their effectiveness in cleaning the air passing through the device, not their overall effectiveness across a whole room and its contents.
Airora kills all types of human pathogen both in the air and on surfaces with none of these drawbacks!

The problem with `Foggers`

A `Fogger` is a device that creates a chemical fog, such as ozone, to kill bacteria and / or viruses. 

Such chemical `fogs` are dangerous to humans, and so foggers are used to fumigate spaces without people being present. While the process itself may be effective (for a short period), it has many obvious drawbacks compared to a technology which can achieve the same or better results, but safely run 24/7 with people present.

One major weakness is that as soon as someone walks into a newly fumigated room, it`s immediately re-contaminated. 

Other drawbacks of using an ozone `fogger` as an anti-microbial device:

• Requires trained personnel working strictly in accordance with a safe method of work statement.
• Requires the room or space to be treated to be empty of people and secured so that people, pets etc. cannot accidentally enter the space being fumigated.
• Requires items likely to be damaged by the fumigant to be removed, and later replaced, to protect them from damage.
• Requires the transportation, storage or handling of toxic chemicals