Bruce Royal efficient HEPA filter uses a unique three-tier progressive silent filter, high efficiency filter 99.97% or 0.1 micron fine particles, is now internationally recognized as the best high-density filter filter. 1.HEPASilent efficient filter layer of fine particles which can be filtered more than 99.7% of 0.1 micron. Since the volume of air in the most solid contaminants are above this size, so HEPA filters out most of the bacteria, pollen spores, tobacco smoke and dust and so on. And naturally antiseptic and remove viruses. The filter is made from 100% recycled materials, non-toxic polypropylene, is discarded when it exploded after corruption becomes harmless carbon dioxide and water. 2. The role of cold catalyst is particularly suitable for the newly renovated rooms and there are pregnant women, children, old people's home, known as low-temperature catalyst cold catalyst, formaldehyde nemesis, it is for formaldehyde and benzene have a strong ability to remove. Principle Cold catalytic oxidation catalyst, the catalyst component from the medium in this process, does not change its composition, it can be used without any long-term treatment. Effective prevention of infants, teenagers decreased immunity and leukemia, ensure the child's body, mental health and development; effectively prevent miscarriage, fetal malformations and respiratory diseases, pregnant women, enhance immunity, to ensure normal fetal development. 3. Modified Modified Activated Carbon Activated Carbon Blueair after special treatment is completely different from ordinary activated carbon adsorption principle is simple. It can be a potent remove common household formaldehyde, TVOC, benzene through chemical action