What are the advantages of Laminar Flow Hood in terms of purification efficiency for pollutants of different particle sizes?
Publish Time: 2024-11-18
As an advanced air purification device, Laminar Flow Hood has shown significant purification efficiency advantages when dealing with pollutants of different particle sizes.
For pollutants of small particle sizes, such as aerosols, bacteria, viruses, etc. with a particle size of 0.1-0.5 microns, Laminar Flow Hood has outstanding advantages. Laminar Flow Hood achieves purification through high-efficiency filters (such as HEPA filters) and stable laminar airflow. The fiber structure of HEPA filters is very fine and can perform physical actions such as interception, collision and diffusion on tiny particles. When air containing tiny particle pollutants enters Laminar Flow Hood, the air passes through the HEPA filter evenly under the push of stable laminar airflow. These tiny particles will be effectively adsorbed on the fibers of the filter, and its purification efficiency can be as high as 99.97% or more, which can greatly reduce the concentration of tiny pollutants in the air that are harmful to human health and production processes.
For medium-sized pollutants, such as dust and pollen with a particle size of 0.5-5 microns.
The laminar flow characteristics of Laminar Flow Hood ensure that the air flows in an orderly manner, avoiding airflow turbulence that causes pollutants to stay and re-suspend in the purification area. The residence time and flow path of the air in Laminar Flow Hood are carefully designed, so that medium-sized pollutants have enough opportunities to contact the filter and be captured. Moreover, the internal structure and airflow organization of Laminar Flow Hood can prevent these pollutants from accumulating in the purification area, thereby maintaining a high purification efficiency.
For larger particle size pollutants, such as hair and fiber debris with a particle size greater than 5 microns. The powerful airflow of Laminar Flow Hood can push them directly to the filter or collection area. Since the airflow in Laminar Flow Hood is unidirectional and stable, these large particle size pollutants will not float around in the purification area, reducing the possibility of secondary contamination. At the same time, the primary filter of Laminar Flow Hood can first filter large-particle pollutants, reduce the burden of subsequent high-efficiency filters, further improve the overall purification efficiency, and ensure that high-quality purified air can be provided for the working environment in the presence of pollutants of different particle sizes.
