{"id":257,"date":"2020-07-21T10:23:59","date_gmt":"2020-07-21T04:53:59","guid":{"rendered":"https:\/\/www.kewaunee.in\/blog\/?p=257"},"modified":"2024-12-02T23:22:34","modified_gmt":"2024-12-02T17:52:34","slug":"demystifying-fume-hoods-face-velocity","status":"publish","type":"post","link":"https:\/\/www.kewaunee.in\/blog\/demystifying-fume-hoods-face-velocity\/","title":{"rendered":"Infographic : Demystifying Fume Hoods face velocity"},"content":{"rendered":"

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Demystifying Fume Hoods Face Velocity<\/span><\/h1>[vc_column_text css=”.vc_custom_1595403211848{margin-top: 0px !important;margin-bottom: 0px !important;padding-top: 20px !important;padding-bottom: 10px !important;}”]<\/p>\n

Infographic : Demystifying Fume Hoods Face Velocity<\/strong><\/h2>\n

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\r\n\t\t\t\t\t<\/i><\/span>\r\n\t\t\t\t\t
<\/p>\n

What is Face Velocity?<\/h3>\n

The face velocity is defined as the average velocity of the air in the sash(face) opening of the fume hood <\/div>\r\n\t\t\t\t <\/div>

\r\n\t\t\t\t\t<\/i><\/span>\r\n\t\t\t\t\t
<\/p>\n

Why is face velocity important?<\/h3>\n

In a laboratory fume hood<\/a>, the control of contaminants is achieved by drawing air through the face(sash) opening. Maintaining a minimum face velocity is critical for the safety of the lab users.<\/div>\r\n\t\t\t\t <\/div>

\r\n\t\t\t\t\t<\/i><\/span>\r\n\t\t\t\t\t
<\/p>\n

How is face velocity calculated?<\/h3>\n

Face velocity is expressed in units of feet per minute(FPM).<\/div>\r\n\t\t\t\t <\/div>

\r\n\t\t\t\t\t<\/i><\/span>\r\n\t\t\t\t\t
<\/p>\n

Is there a standard or guideline for face velocity?<\/h3>\n

The most authoritative of these published guidelines is the ANSI\/AIHA Z9.5 American National standard for laboratory ventilation<\/a>.<\/div>\r\n\t\t\t\t <\/div>

\r\n\t\t\t\t\t<\/i><\/span>\r\n\t\t\t\t\t
<\/p>\n

Is there an acceptable limit for face velocity?<\/h3>\n

American national standard for laboratory ventilation publication recommends using an average face velocity of between 80 and 120 feet per minute. However, newer technologies (like Kewaunee<\/a>‘s Venturi series) have allowed face velocities as low as 60 FPM to show good containment.<\/div>\r\n\t\t\t\t <\/div>[\/vc_column_inner][\/vc_row_inner][\/vc_column][\/vc_row]<\/p>\n<\/div>","protected":false},"excerpt":{"rendered":"

[vc_row full_width=”stretch_row” equal_height=”yes” content_placement=”middle” css=”.vc_custom_1594037823219{margin-top: 0px !important;margin-bottom: 0px !important;padding-top: 40px !important;padding-bottom: 40px !important;}”][vc_column][vc_row_inner][vc_column_inner][vc_column_text css=”.vc_custom_1595403211848{margin-top: 0px !important;margin-bottom: 0px !important;padding-top: 20px !important;padding-bottom: 10px !important;}”] Infographic : Demystifying Fume Hoods Face Velocity [\/vc_column_text][\/vc_column_inner][\/vc_row_inner][\/vc_column][\/vc_row]<\/p>\n","protected":false},"author":2,"featured_media":254,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[24,108,22],"tags":[36,4,34,7,37],"yoast_head":"\nDemystifying Fume Hoods Face Velocity | Kewaunee Blogs<\/title>\n<meta name=\"description\" content=\"Unlock the science behind fume hoods face velocity. 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