Combined 3 units and found them to be too weak to really feel any benefit like improvement in mental state or physical well being or air pollutant and odor remival. Maybe banggood could advise as to how many units are typically required for this product to be effective.

Combined 3 units and found them to be too weak to really feel any benefit like improvement in mental state or physical well being or air pollutant and odor remival. Maybe banggood could advise as to how many units are typically required for this product to be effective.

Combined 3 units and found them to be too weak to really feel any benefit like improvement in mental state or physical well being or air pollutant and odor remival. Maybe banggood could advise as to how many units are typically required for this product to be effective.

The unit itself is very tiny, but it works fine. The ion wind is easy sensing by your hand. Generate over -3kV voltage (see on my photo below) this is generate a small amount of ozone. Is helpful, because the ozone an oxidizing gas, disinfect to bacteria, and neutralize the odours. (Highly value to poison, but this item a really small amount generated by ozone.) Iam using the room air purifier. In my opinion better a 2-3 little unit per room (instead one big ionizer per room).

The unit itself is very tiny, but it works fine. The ion wind is easy sensing by your hand. Generate over -3kV voltage (see on my photo below) this is generate a small amount of ozone. Is helpful, because the ozone an oxidizing gas, disinfect to bacteria, and neutralize the odours. (Highly value to poison, but this item a really small amount generated by ozone.) Iam using the room air purifier. In my opinion better a 2-3 little unit per room (instead one big ionizer per room).

The unit itself is very tiny, but it works fine. The ion wind is easy sensing by your hand. Generate over -3kV voltage (see on my photo below) this is generate a small amount of ozone. Is helpful, because the ozone an oxidizing gas, disinfect to bacteria, and neutralize the odours. (Highly value to poison, but this item a really small amount generated by ozone.) Iam using the room air purifier. In my opinion better a 2-3 little unit per room (instead one big ionizer per room).