Epidemiologic studies indicate that indoor air pollution is correlated with morbidity caused by allergic diseases. We evaluated the effectiveness of reducing the levels of indoor fine particulate matter <2.5 micrometer diameter (PM2.5) in Fresno, California using air purifiers on health outcomes in children with asthma and/or allergic rhinitis. Methods: The active group (with air purifiers) and the control group consisted of eight houses each. Air purifiers were installed in the living rooms and bedrooms of the subjects in the active group during the entire 12-week study duration. Childhood asthma control test, peak flow rate monitoring, and nasal symptom scores were evaluated at weeks 0, 6, and 12. Results: At 12 weeks, the active group showed a trend toward an improvement of childhood asthma control test scores and mean evening peak flow rates, whereas the control group showed deterioration in the same measures. Total and daytime nasal symptoms scores significantly reduced in the active group (p = 0.001 and p = 0.011, respectively). The average indoor PM2.5 concentrations reduced by 43% (7.42 to 4.28 μg/m3) in the active group (p = 0.001). Conclusions: Intervention with electrostatic precipitator air purifier reduces indoor PM2.5 levels with significant improvements in nasal symptoms in children with allergic rhinitis in Fresno.
The current health situation, consequent to the Covid-19 pandemic in the world, has brought air purifiers to the forefront. NatéoSanté, specialising in indoor air quality since 2009, has extensive experience of and insight into these devices’ evolution. Reinforcing the fight against the coronavirus, especially in hospitals, schools or companies, our EOLIS Air Manager models are at the forefront of innovation and technology. Their function: to filter and purify the air. Here is a general presentation of these devices and focus on the particularities of the brand.
An indoor air purifier ensures the filtration of air within an enclosed/closed place, which is processed then released as purified air. It operates as a complement to natural ventilation where it is possible to open windows.
It is vital to distinguish a professional model from a consumer device: they do not both guarantee identical air treatment or comparable overall performance.
A professional air purifier, equipped with a HEPA 13 or 14 filter, will operate effectively on pollens, fine particles PM2.5 and PM10, VOCs (Volatile Organic Compounds), viruses and bacteria.
Finally, the device’s benign operation is key: that is to say the ozone generator air purifier itself does not generate any secondary pollutants.