When it comes to dust and odor treatment,industrial vacuum systems have to meet the highest standards. Air filtration systems protect the health of your operators, your products and your machines. These systems have different filtration stages: G4 filters, M5 to F9 fine filters and H13 to U17 absolute filters.
Non-regenerable G4 air filter solutions are used to treat low-dust air. Let’s take a closer look at these filter elements.
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What is non-regenerative filtration?
G4 non-regenerative pre-filters are disposable filters. They protect the finer filter elements downstream. Cardboard or plastic frame filters are fully recyclable. Galvanized or stainless steel frame filters require dismantling before reprocessing.
Some filters are flat, others are pleated (larger filtration surface). These saturation filters are suitable for small air handling systems and air purifiers.
The non-regenerable G4 air filter
The G4 filter protects filtration systems, fine filters, high-efficiency filters and carbon filters. This filter captures coarse particles and dusts larger than 10 microns (also known as ISO Coarse in the new standard).
What is the role of the G4 filter and what does it look like? Let’s find out.
Non-regenerable G4 filter: roles and functions
Coarse filters (G3 to G4) are found in all filtration systems (purifiers, air handling units). The G4 filter acts as a pre-separator between fine and coarse particles. As particle separators, they capture coarse particles and protect fine and very fine filters.
The disposable G4 filter also protects air handling systems from greasy dust and sparks.
Typology of G4 non-regenerative filters
The disposable G4 filter is a filter medium made from a variety of materials. Some pleated-type G4 filters are in a galvanized steel frame. Other disposable filter media are flat, made of synthetic fibers sewn onto a steel wire or galvanized or stainless steel frame. Some synthetic-fiber filter media are housed in a rigid cardboard frame. G4 cut-to-size polyester fiber filters are also available on rolls.
E10 to U17 high and ultra-high efficiency filters
Source or ambient filtration systems can be fitted with these high and very high efficiency filters. These absolute filters are saturation filter media divided into four categories:
- fine filters: M5 to F9 (“medium and high efficiency” filters) ;
- EPA filters: E10 to E12 ;
- HEPA filters: H13 to H14 ;
- ULPA filters: U15 to U17.
EPA, HEPA and ULPA filters are “very high efficiency” or absolute filters.
High and very high efficiency non-regenerative filters: function
These different air filters guarantee the treatment of hazardous dusts (CMR). They are also used for final filtration (absolute filters) in air treatment plants in the healthcare sector. Fine filters are used for pre-filtration, between the G4 filter and the absolute filter.
These fine, absolute filters are also found in dedusting and air filtration systems in the pharmaceutical industry, data centers and laboratories.
Types of ultra-high-efficiency disposable filters
Fine filters and ultra-high-efficiency filters are minipleat, fiberglass paper filters mounted on plastic, steel or cardboard frames. They are available as filter cassettes for mobile industrial dust collectors and as saturation filters for small industrial dust collectors. Saturation filter replacement kits are available for safe filter replacement.
To guarantee optimum air quality, these filters need to be replaced every time they become saturated.
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