Negative oxygen ion machine

Patented design: original wind tunnel technology, "wind feeling" is stronger

Negative ion concentration is much higher than that of peers, up to 40 million per cubic centimeter

Low ozone technology: ozone concentration is less than 0.03mg/cm3 (national standard is less than 0.16mg/cm3)

Receiver patented technology: effectively solves the equipotential stripping, which is more conducive to the absorption of negative oxygen ions