I second that. I'm using a small industrial ionizer ION Model 6421a. When getting something like this do get the corona discharge unit rather then the alpha-particle unit. The latter uses a small radioactive source which emits ions continuously. The major parameter to look for is ion balance in volts, the lower V's the better. Good luck!
PS I use it only when cleaning the record and then from time to time when playing, but not contiuously--ionized air makes cart suspension rubber decay faster
PS I use it only when cleaning the record and then from time to time when playing, but not contiuously--ionized air makes cart suspension rubber decay faster