Esco Ascent max - Airflow Pattern and Filtracheck

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1.4AirflowPattern
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1. Aninflowaircurtainfromtheambientenvironmentintothecabinetwithanaveragevelocityof0.5
m/sor100fpmisinducedbythecabinetblowersystem.
2. AdditionalinflowairtakenthroughtheAutoPurge™slotsatthebackoftheworkzonepreventsfume
accumulationforbetteroperator
protection.
3. Theinflowflushestheentireworkzoneofthecabinet;withinthemainchamberofthecabinet,
negativepressure(relativetotheambientenvironment)ismaintainedinordertoensurethatno
chemicalfumesorvaporsescapetheworkzone.
4. Airistakenthroughanactivatedcarbon
filtermountedintheinterior;thisremovesallfumesfrom
theexhaustairstream;exhaustairisre‐circulateddirectlybacktotheroomfromthetopofthe
cabinet.
1.5Filtracheck
FiltraCheckisatrademarkserviceprovidedbyEsco’sfumefiltrationdivision.Customerswhointendto
purchaseaductlessfumehoodbutareunsurewhetherthecabinetissuitablefortheirapplication,can
forwardalistofchemicalsthattheywillbehandlingandtheirpatternofusagetoEsco'sFiltraCheckservice
team.
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APDFQuestionnaireformisavailableathttp://ductless.escoglobal.com/.Thisquestionnairecanbe
downloadedandeitherforwardedbyemailorbyfaxtoEsco.Aftercarefulanalysisoftheprovidedchemicals
listandpatternofusage,aproperadvicedocumentwillbegeneratedandprovidedtothecustomerin3days
period.
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Thisdocumentwillrecommendtheappropriatelaboratoryequipment;ductedfumehoodorductlessfume
hoodorneitherbasedontheinvestigationdonebytheFiltraCheckteam.Dependingonthetypeofchemicals
used,thedocumentmayalsocontainalistofprocedures,warnings,etc.thatwillhelpinensuring
asafer
laboratoryworkingenvironment.Inthecaseofarecommendationofaductlesscabinet,appropriategrade
andtypeofactivatedcarbonalsobecomesafactorthathastobetakenintoconsideration.
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