In addition to being a carrier for different types of allergens, particulate matter is also known for a wide array of negative health effects affecting the respiratory and cardiovascular system (respiratory symptoms, aggravation of asthma, increase in hospital admissions etc.).
Recently the measurements have been completed and preliminary findings indicate that not only airborne house dust mite allergens, but also particulate matter covering ultrafine particles, PM1, PM 2.5 and PM 10 are efficiently reduced using the air purifiers. The less of these harmful substances are in the air, the smaller the amount available for direct inhalation by the occupants of the indoor space.
Detailed analysis of all data collected during the study is on-going and a publication of the final results in a peer-reviewed journal is in preparation. It is anticipated that these findings will be submitted for peer-reviewed publication later this year.
Prof. Dr. Buters, deputy director of ZAUM- Center of Allergy & Environment in Munich, Germany states that "To our knowledge, this is the most comprehensive study which shows that portable air purifiers can reduce airborne HDM and other allergens in different particle size fractions in homes".