Puricraft's B-ION BOOST portable ionizers are easy to use, very light and very silent: - They produce up to 5,000,000 ions/cm³ - They have no filters and therefore no maintenance costs - They consume very little - They remove smoke and odours, weigh down fine particles, making them fall to the ground and eliminate over 90% of viruses and bacteria. - They are over 90% effective and tested by the biology department of the Federico II University of Naples.