Is it true that Zhongjie sinoclean's fresh air system has national patented technology?

High efficiency air filtration system is a system to prevent scientists from radiation and purify laboratory air, which originated from American nuclear research laboratory. Divided into four layers: 1. After the pre-filtration mesh layer is treated with antibacterial substances, larger particles of pollutants can be filtered out. 2. Suspended particles such as positively charged smoke, dust and musty smell in the negative ion filter screen layer and the air are settled down and captured by the filter screen. 3. The filtration efficiency of 3.HEPA high-efficiency ultra-static filter screen layer is as high as 99.97%, which can filter out pollutant dust and smoke above 0.3 micron, and the bacteriostatic coating can inhibit bacteria and viruses. 4. The specially treated activated carbon filter layer can effectively filter harmful gases in the air, such as automobile exhaust, industrial pollution gas, formaldehyde, benzene, sulfur dioxide, nitrogen dioxide and air odor. SHF purification technology features: ○ high dust removal efficiency: four layers of filtration to prevent dust from slipping in. HEPA can capture 0.3 micron fine dust, completely eliminate indoor floating dust and dust pollution, and ensure the room is spotless! 0.3 micron is equivalent to one ten thousandth of 1 mm, which is much smaller than ordinary bacteria (generally about 0.5 ~ 1 micron); ○ Efficient sterilization: The sterilization rate of HEPA to air reaches 99.97% after being tested and certified by the CDC of the United States! ○ Reduce fresh air: The introduced indoor air, after efficient filtration, can completely filter out harmful media such as bacteria, viruses, dust, harmful gases and odors, making the indoor air fresh, clean and oxygen-enriched.