Stiftung Warentest with a clear judgment
Stiftung Warentest has subjected the three best air purifiers to a special test in which the properties for filtering the air with aerosols that are as large as those of the coronavirus were examined. One particular mistake shouldn’t be made to effectively reduce the spread of Covid-19.
Stiftung Warentest: Air purifiers effectively reduce aerosols
Air purifiers have been very popular since the coronavirus outbreak. They clean the air and thus reduce aerosols. This is currently the best alternative, especially in winter, when there is no permanent ventilation when there are several people in one room. But how well do the air purifiers actually work for this purpose? That’s exactly what she has Stiftung Warentest now specially tested and given important details on the use of such air filters.
The Stiftung Warentest tested the following three models:
- Philips AC2889 / 10 (view on Amazon)
- Rowenta PU6080 (view on Amazon)
- Soehnle Airfresh Clean Connect 500 (view at MediaMarkt)
These models won in the last tests and are now being examined again for the filtering of aerosols with a size of 0.12 to 1 millionth of a meter. The coronavirus is very small at 0.12 millionth of a meter and demands everything from the air purifiers. Because of that the air purifier must run at maximum level. This is the only way to filter the coronavirus out of the air to a large extent. In automatic mode, the sensor does not measure specifically for these particles and then filters accordingly less.
The results of the Stiftung Warentest
If the filters in the air purifiers are new, all three devices filter very well. With 16 square meters and 40 cubic meters of space, the aerosols are reduced by 95 percent after 20 minutes. Only the Soehnle comes with a little less with 90 percent. The Stiftung Warentest has simulated the aging of the filters and gained surprising findings. With the Philips model, cleaning with a dirty air filter was still 90 percent. Rowenta’s came to 80 percent. Only the Soehnle model has fallen sharply by 46 percent. Regular replacement of the filter is therefore extremely important in order to guarantee the function of filtering the aerosols.
Philips AC2889 / 10 presented in the video:
Air purifiers do not ensure complete safety
The Stiftung Warentest certifies that the air purifiers perform well in filtering aerosols, but also makes it clear that this only works under certain conditions. For example, the room must not be too big and there must not be too many people. At the maximum level, an air purifier only helps to reduce the risk of infection with the coronavirus and does not replace the distance or regular ventilation. In addition, the filter must be changed regularly. Additional high-class Hepa filters can also slow down the cleaning process. You can find out more about air purifiers in our purchase advice.
