Product Introduction This dust-free room-specific vacuum cleaner effectively filters fine particles as small as 0.3 μm with an efficiency of 99.97%, making it suitable for dust-free environments classified below Class 100. It features exceptional suction power, superior filtration performance, and ultra-quiet operation.

Usage location: Ideal application environments include: laboratory contamination control, cleanrooms, or other dust-sensitive areas. Harmful airborne particulates include asbestos and the like.

The GM80P features four major filtration systems:

First-layer filtration: paper bag 
Nilfisk vacuum cleaner paper bags are double-layer bags made from two different materials. The inner lining attracts dust particles, and as air passes through the outer fiber layer, the bag efficiently captures and contains visible dust for easy disposal.

Second-layer filtration: primary filter cotton cloth 
The oversized primary filter mesh with electrostatic treatment can remove up to 99.5% of dust particles as small as 4 μm. Its extra-large design delivers superior surface filtration performance. Additionally, there is a Gore-Tex filter cotton made from Dralon material that is resistant to acids (effectively filtering out 99.995% of dust particles larger than 0.33 μm).

Third-layer filtration: Motor protective cover* 
The standard motor protective cover is made from a non-woven material composed of wool and synthetic fibers, capable of filtering out dust particles as small as 2 μm with an efficiency of up to 99.5%. This fine filter is ideally suited for installation at the base of the motor; in addition to protecting the motor itself, it can also capture dust particles as small as bacteria and reduce contamination of HEPA or ULPA filters, thereby extending their service life.

Fourth-level filtration: HEPA or ULPA filter* 
HEPA (High-Efficiency Particulate Air) filters represent the final stage of filtration. They are made from glass fiber paper and can remove up to 99.97% of particles as small as 0.3 μm—particles that are just one-three-hundredth the diameter of a human hair. Each HEPA filter has been tested by the DOP (U.S. Army Headquarters) and is used in accordance with appropriate specifications. HEPA filters are capable of capturing even toxic and hazardous particulates, making them ideal for fine-particle filtration. ULPA (Ultra-High Efficiency Particulate Air) filters are also made from glass fiber paper, but their fibers are arranged much more densely. These filters can remove as much as 99.9995% of particles, including those as small as 0.12 μm—particles that are only one-nine-hundred-and-sixtieth the diameter of a human hair. ULPA filters are even better suited than HEPA filters for applications requiring extremely stringent contamination control.

(*Optional)

Cleanroom Class 1: Equipped with GORE-TEX filter fabric (resistant to acids, alkalis, and high-temperature dust) and ULPA ultra-high-efficiency filters. 
Cleanroom Class 10: Equipped with ULPA ultra-high-efficiency filters, achieving a filtration efficiency of 99.9995% for particles as small as 0.12 μm. 
Cleanroom Class 100: Equipped with HEPA high-efficiency filters, achieving a filtration efficiency of 99.97% for particles as small as 0.3 μm. 
Cleanroom Class 100,000: Installation of a fine dust exhaust filter (typically GM80) with a filtration efficiency of 99.5% for particles as small as 0.6 μm. When equipped with a fume hood: this setup eliminates the need for HEPA and ULPA filters, allowing exhaust gases to be directly discharged outside the cleanroom, thus preventing contamination of the cleanroom environment.