Hi,
I've just bought the Medklinn 3 weeks ago. TO those that don't know. nagative ions are great for health but Ozone is very bad for the lungs ( good for killing odours ). After using the unit for a week, i find that this unit seem to generate alot of ozone- the metallic smell. True negative ions doens't have much smell at all.
I came across another negative ion generator calle serumi ( from Japan) that promises to generate 1 million ions at 1 meter away. the saleperson has a gadget for measuring ions. Out of curiosity, I brought the medklinn for him to test. His machine measured more then advertised ( about 1.5 million Ions at 1 meter) the medklinn generated almost zilch- 5-10,000 - ions at source ( this means placing the device touching the medklinn)- FYI- in normal air, yo can find 5-10000 ions also.
Therefore, All I got was lots of ozone & no ions.
I bought the serumi and it really made a difference. I sleep better and there is no awful ozone.
I've made my complaints, let's see what they do. My suspicion is that it's not defective, just in effective as it sure generates ozone very well.