IONEX company has patented the most powerful, the smallest and totally silent portable IONEX air ionizers, based on carbon brush technology (one model for home use & offices and another model for cars and trucks). The ionizer can clean the air up to 100%, never emits unhealthy ozone and is an effective device for allergies, asthma and hypertensive disease. The marvellous results of inhalation of negative ions directly near the unique carbon brush (so called ion therapy) are complete elimination of all symptoms, cured diseases without any negative side effects, better immune system, eliminated stress, and excellent prevention from colds and from other infectious diseases.