BROTEC

DUST FILTERS

Le filtre à poussières n’a pas de principe actif et fonctionne simplement comme un tamis dont la finesse détermine la capacité de rétention. Le filtre P3, employé essentiellement dans les travaux de désamiantage, retient plus de 99% des particules en suspension (rendement atmosphérique) et 100% des particules non en suspension (rendement gravimétrique). Il est aussi employé en complément de pré filtrage en ambiance polluée nécessitant l’emploi de filtres à charbons actifs.

P1 or EU5 (according to Eurovent standard)

Filter with Polyester foam preheated to a temperature of 400 ° C for better fiber cohesion. The P1 filter must retain 90% of the so-called gravimetric dusts (or so-called "falling" dust), remaining not suspended in the air.

P3 or H13 (according to EN1822)

Paper fine dust filter filled with fiberglass, the P3 filter must retain 99.995% of the dust from size greater than or equal to 0.3 micron (opacimetric or "flying" dust). It is also called "asbestos filter".

 

 

Type

Description

Concentration

Protection

Efficience

P1

Pré filtre

>10 mg/m3

Poussière fine inoffensive mais gênante

55%

 

EU4

P2

Standard

>0,1mg/m3

Poussière fine nuisible et gênante

95%

 

EU9

P3

Absolu

< 0,1mg/m3

Poussière fine toxique, amiante, oligo-éléments, bactéries, virus

99,95 %

99,995%

 

H13

H14

 

 

 

BROTEC

ACTIVE CHARCOAL FILTERS

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La structure poreuse des particules de charbon actif, associée à leur capacité d’attraction, permet la captation et la rétention des substances nocives générées dans l’atmosphère par une contamination chimique et/ou organique. Les filtres sont optimisés en fonction des types de contamination à considérer

Type "A" or "AK" or "ABEK"

A carbon filter is characterized by the type of gas for which it exercises its majority retention; this in connection with a contact time minimum in the media or a speed of passage. The nominal height of a filter Brotec coals is 92mm. It consists of cylindrical particles 3mm diameter obtained by extrusion and retaining the gas considered by adsorption or effect surface film. Brotec filters are made in France and meet the most demanding standards issued by the control and safety bodies (CRAM, CARSAT ...)

3 types of filters for charcoal filters 

A For the retention of hydrocarbons (methane, benzene, toluene ...) released mainly in soil remediation work.

AK For the retention of ammonia found in the treatment of composts.

ABEK For the retention of ammonia and hydrogen sulphide found mainly in the treatment of sewage sludge.

HG Pour la rétention des vapeurs de mercure.