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HEPA FILTERS

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High Efficiency HEPA filters find their application in air supply, circulation and exhaust systems of medical facilities, laboratories, food industry and other sensitive fields, where demands for clean air are highest. There are many usage areas for HEPA bacteriologic filters: food, optics, and electronics industry, hospitals, laboratories, sterile rooms, etc.

 

Detail description

The core of High Efficiency HEPA filters is the revolutionary filtration material design based on the advanced blend of borosilicate microglass fibers and synthetic fibers. The latter composition make these filters extremly durable and ensures abslute filtration efficiency with respect to capture of avoided particles. Novel design of High Efficiency HEPA filters provides structure which is up to two times stronger compared to conventional corresponding filters; that secures the filters from risk of accidental damage during handling operations, accidental impact and general  performance of the filters. The construction of a HEPA filter consists of a very thin and dense filter material folded into a wooden or metal frame. The filter material catches particulates of dust from the air that penetrates it. High filtering ability is achieved by very low speed at which the air penetrates the filter material. Maximal speed can not exceed 0.025 m/s. To achieve sufficient air speed through the face of the filter, it is necessary to fold the filtering material into the cassette as tightly as possible, but at the same time it should be noted that the filter resistance would not become too high. In a standard filter cassette in size 610 x 610 x 292 mm has c.a. 20 m² of filter material. The most used material is glass cloth, but also different fabrics of synthetic fibre can be used.

 

Technical parameters

Max. Operationg Temperature: 80 C

 

Classification acc. to EN 1822

Filter class E10

Filter class E11

Filter class E12

Filter class H13

Filter class H14

 

Versions

  • Frame types:MDF frame, extruded aluminium frame,plastic frame, steel plate with powder coating, galvanized steel frame

  • Standard depths: 69mm, 78 mm, 150 mm, 292 mm

  • Special sizes on request

  • Gaskets: several versions

  • Filter media is cast in frame

  • On demand with scan-test-protocol

  • It is possible to produce filter material in one piece with width 1220 mm, length 1830 mm and fold depth up to 280 mm. There are different versions of the filter, which are all rustproof, easy to install and clean.

 

Material characteristics

  • Tested according to EN 1822

  • Humidity resistant up to 100% r. h. (depending on version)

  • Temperature resistant up to max. 70°C

  • Contains no silicone

 

Absolute filters

Absolute filters guarantee the very highest level of air quality. The filtration class of HEPA filters is from EU 10 to EU 14, and then from EU 15 to EU 17 there are ULPA filters. Such filters can prevent particles, aerosol, fine toxic dust, virus, bacteria, etc from invading into rooms, where air quality must be at the very best possible level.