HEPA: High Efficiency Particle Arrestor
Be made of polypropylene microfiber
Suitable for many industrial fields
Features:
Chemical stable
High powder-capturing ability in micron grade
High ability in filtration and tolerance
Filtration precision: 99.9%,
Longer lifetime
Owns the ability of hydrocarbon (oil) absorption due to its special structure.
Structure feature: be composed of layers in different grades (There are at most 12 layers in a HEPA filter bag in different density and precision rate, with inner layers thicker but lower precision than outer layers. So, inner layer for pre-filtration while middle and outer layers for precision filtration.)