* 220-240V 50/60Hz 1600-2000W

 * DC motor   

 * accessery：professional concentrator*1    

 * Ionic function for choice    

 * Slide switche provide 0-C-1-2 settings    

 *  Unremovable filter cover,with double filter, more safty   

 *  With single layer concentrator   

 *  folding handle, conveninent to storage