Selection of Suitable Size / Model
Some air cleaners may appear to filter solvent vapours very effectively. However, these models usually have a filter media content which is suitable only for average concentrations of gases and chemicals found in ordinary home and office environments. The extremely high concentrations of airborne solvents generated by solvent printers may over-saturate the filters very rapidly making them ineffective after a short operational time (even a small printer may produce very high concentrations of solvents, especially in a small room).
Most printer solvent air pollution problems as "solvable", given the use of the right air cleaning technology, the right amount and quality of media and the suitable airflow rate for the room size. In fact, in most instances the limiting factor is not the lack of technology, but the available budget. Sometimes this may result in domestic air cleaners being used for professional air cleaning applications.
Air quality improvements will depend to a significant degree on room-specific and other factors. Important factors which will influence air cleaning performance include the following:
Many air cleaner brands overstate the air cleaning capabilities of their devices in order to make them more appealing to potential customers, IQ AIR prefer to be scientific about air cleaning and only state factual capabilities.
Effective Results may not be recognised
Effective solvent vapour removal can only be measured with suitable measuring equipment. Even an impressive 80% solvent reduction may still not be "noticeable" or appreciated by the persons in the room. In fact, the air cleaner may reduce solvents effectively down to levels where they don't pose health risks, yet the presence of the remaining low solvent concentrations may still be noticed and regarded as unpleasant.
Gas Removal More Effective at Lower Fan Speed
The removal of gases and chemicals will be better at low fan speeds than at higher fan speeds. Reason: the longer the contact or “dwell” time between the pollutant and the gas phase media, the more effective the adsorption rate and the better the removal efficiency. Therefore, running the unit at maximum fan speed is counter-productive.