Subject: Laboratory Furniture Design
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A small bypass chamber above the sash provides airflow through the hood when the sash is down. Most hoods have an airfoil across the bottom and this also provides airflow across the floor of the hood when the sash is fully closed.
Bypass hood - A bypass opening above the sash and the airfoil provides relatively constant face velocity regardless of sash position. The EH&S profile sticker will have a slash mark through the lines where sash height positions should be.
Walk-in hood - Designed so that lab personnel can walk into the hood to set up large and bulky equipment. (It is not intended that personnel stay in the hood when equipment is operating.) Profile sticker sash height settings must be followed when using this type of hood.
Perchloric acid hood - This may be either a full sash of bypass hood with a wash down system in the hood's baffles and duct work to prevent or wash away build up of explosive perchlorate crystals in the duct work. Perchloric acid hood have dedicated ducting and motor (ductwork is not manifolded with other fume hoods). Profile sticker sash height settings must be followed when using this type of hood.
Do you have other size choices? Just tell us now!
For more information about Laboratory Furniture Design, please kindly visit our website http://www.xy-labs.com or contact at nina@xy-labs.com or Skype: nina-nina.181, MSN: nina-nina.181@hotmail.com Contact: Nina
Company Name: Xiamen XiangYun Laboratory Equipment Co., Ltd
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