Dyson Pure Cool Link review: a fan that blows clean air in your face
The theory behind the filtration is really quite simple. The Pure Cool Link pulls air through a fine mesh filter and fires it out through one of the company’s air multiplier fan designs.
The 360-degree glass HEPA filter can capture up to 99.95% of pollutants - anything over 0.1microns. In the air trapped in the filter there is pollen, spokes, smoke, dust and other irritants. The filter also has activated carbon, similar to that used in cooker hoods, to trap any chemicals in the air, thus removing smells and pollutants.
The cleaned air is then piped through to the paperclip-like loop, directing the air forward with force and sucking air through the back of the loop as it does so, amplifying the airflow.