... .5g ozone generator for air purifier. Welcome your inquiries! 2, The usage of 30g ozone generator Used in Large Water purifier, Water purification ... Oxygen circumstance)Ozone concentration: 100 ~ 120mg/L (oxygen amount, the source of 0.2-0.4 m3 / HR)Air source (for - 40 ... , pls give us mails to confirm the payment, you can pay us through the paypal,the west union, the bank transfer. After you pay ...