This is a very basic ioniser of indifferent design, at an affordable price. It works, wow.
To be honest, at first I wasn't very impressed by the device. It looks like it was assembled from the simplest parts available, and it is. But it works: after a few minutes of listening to the modest buzz of the fan you start getting static discharges from your house plants, items and surfaces nearby. After a while, plant leaves even metres away from the device seem charged. You can't say it doesn't work: it clearly ionises the air in a small space, and thus grants the proposed benefits of ionisers. With it, airborne particles quickly settle onto surfaces, and are thus less likely to end up irritating your eyes, nose and lungs.
The device itself sports a simple 80mm fan (the same type you find in computers), the ioniser string and a detachable "filter", all in a massive gloss-white plastic casing with an on/off switch. The filter is a loose polyester mesh, through which even small flies could fly. To get any actual filtration, you can, and should, add your own screen - I personally used an active carbon filter sheet designed for vacuum cleaner bags. It fits perfectly under the original mesh. There's no saying will this do you any real good.
This machine would probably work best in a small space, where its fan is sufficient to ionise the air. Rid you of a particular, especially pertinent smell, this device will most likely not. For this price it's surely worth the try, since the next real step in air purification would be an ioniser/ozonator.
One of the only cheap ionisers you can actually get shipped into EU Zone 3, at a decent price. UK mains, of course.