Forest&fall areas

Countryside& thefield

Living Park  

Enclosed city living area& air-conditioning room

10000-500000Ions/cm3

5000-50000Ions/cm3

1000-2000Ions/cm3

40-50Ions/cm3

Has spontaneous healing  

Enhance Strengthen human immunodeficiency   &Antibiotic Strength

Maintain the basic health requirement

Induce headache, insomnia, brainfag, irritancy and respiratory diseases