Filtering ultrafine particles and gases - targeted clean air

We have performed studies onboard cruise ship to study the particle number concentrations,the commonly used filters and the utilization of novel filtration technologies. We observed that the majority of particles in the indoor air of a ship - and this applies when the ship was sailing in clean or polluted outdoor air - are smaller than 1 micron). We also observed that the commonly used filters mainly filtered particles larger than 1 micron. Thus we were able to improve the indoor air quality dramatically by introducing a new filtration technology that filters efficiently not only particles but also gas/vapour phase impurities. The same technology was further applied in an urban office to generate a clean breathing zone, and the results were promising: The breathing zone air was cleaned with up to an efficiency of 73,6%. Also subjective results from the people involved in the test were positive