Difficult to take a large amount of negative ions in nature
A large amount of negative ions can be detected where water splashes such as waterfalls and fountains. This is called the Lenard’s effect. However ion counts in nature change constantly depending on how water splashes. We have conducted an experiment near a fountain and found dramatic changes as we moved one step forward or backward. 1,000-10,000(pcs/cc) of negative ions can be detected near a large waterfall but the counts are not consistent. You can enjoy nature but you cannot enjoy a large amount of negative ions.
Effective way to take negative ions
We suggest you should rely on a negative ion generator (ionizer) for these reasons.
1. constantly generates a large amount of negative ions 2. easy to install 3. 1 generator covers the whole room (no need to buy other items)
There are many negative ion generator (ionizer) on the market. Some work well, while others don’t.