Filters surprisingly good, I like that!

Furnishings:
The device can be almost eingeschlaltet out of the box. Only the plastic wrap around the two filters (HEPA and activated carbon) have to be removed. The filter must rest every 3 months (coal), or even be replaced annually (HEPA).
The device itself is quite simple and can be easily carried. These above a carrying handle is attached. Thus, you can always bring it into the room where you need the device.
It included a brief Quick Start Guide, a comprehensive guide, there is also the manufacturer's website.

Operation:
Here two modes are generally possible: automatic and manual. For automatic mode, the machine scans the air quality by contamination and the like. The device displays with blue, yellow or red LED on the degree of contamination of air. Depending on the level, the device switches to a certain strength and reduces the intensity again when the coast is clear. In manual mode, can determine the strength of the air circulation.
In the lowest mode, the device is quite low, you can run in the background without you noticing large. So it can also be run in the bedroom well during the night. Once the device but works more, it is already noisy. At level three goes going on and at the highest level 4 inflates the device very noisily. But it is thereby circulated also a whole lot of air, the performance is fine.
The current setting is displayed by flashing LEDs on the front. During the day and in the living room, for example, that's fine, but at night in the dark bedroom, the LEDs already nervous very. In addition, can not turn off they. For the use in the bedroom, I recommend sticking a small cardboard or similar on the LED displays. The best from the top, so that the board can simply fold up when you turn on the controls would again.

Result:
The air acts actually clean and pure, when the unit is running. How strong is the effect in pollen, I can currently say bad, but according to the manufacturer, the device filters out 99% of allergens from the air.
Food and cooking odors are filtered well and are quickly out of the air.
Even cigarette smoke is well filtered. When the unit is in automatic mode, it recognizes quite quickly if you turns a cigarette and increases performance. The smoke is well filtered. Since we often have friends to watch football there and then smoked, I was able to test the device here well. In the high power levels, the device is based on a continuous flow of air here. At the top, the air is blown out and constructed with the opposite wall as an obstacle, a circuit which conveys the smoky air to the unit and the side Lufteinzügen back. This works so well, you can see that pull the smoke to the device and on the legs feel light train. If you can work a little bit so the device after smoking, the room is soon smoke free enjoyable. This is especially handy in the winter, because you have to ventilate as less and then reignite.

Follow-up costs:
The filters must be replaced regularly. News (23:10:13) there is the Fellowes HF-300 large HEPA filter for 26.98 and the Fellowes CF-300 large carbon filters, black for 19.57.

Conclusion:
After I turned on the device for the first time and it easily blew in front of him, I was initially a little skeptical. But after I have used the device a long time now, I think it's really good and also the improved air quality I like. I would also like it, after smoking, no longer do without.