Hoods and cabinets 비교

<P align=justify><STRONG><FONT face=Verdana><U>Hoods and cabinets</U></FONT></STRONG></P> <P align=justify><FONT face=Verdana><I><B>Always check the performance of a fume hood before using it</B></I>. A piece of tissue hanging on the bottom of the hood's door should be moving inwards when the sash door is closed at 2/3 of the way down. Report any problems to the room owner or to Anna McNicoll, (514) 398-6406 in W4/14. Some highly hazardous products, such as perchloric acid, can only be used in a "wash down fume hood" especially designed to handle this kind of chemical. Ask the room owner for permission and instruction on how to use it. Keep the fume hood uncluttered, overstocking disturbs the airflow and puts you in danger. </FONT></P> <P align=justify><EM><STRONG><FONT face=Verdana>WARNING !!! NOT ALL HOODS ARE FUME HOODS !!!</FONT></STRONG></EM></P> <P align=justify><FONT face=Verdana>There are different types of hoods to work in:<BR></FONT></P> <DIV align=justify> <DL> <DT><FONT face=Verdana><B>FUME HOODS<BR></B>Protect <B><I>you</I> </B>from fumes you are working with. The fan sucks in the air toward the duct inside of the fume hood towards the outside. This system works only if you bring the hood's door down at least 2/3 of the way. The narrower the opening, the swifter the air.<BR></FONT></DT></DL></DIV> <TABLE cellPadding=10 width="90%" bgColor=#99ccff frame=border> <TBODY> <TR> <TD> <IMG height=250 src="https://img1.daumcdn.net/relay/cafe/original/?fname=http%3A%2F%2Fbiology.mcgill.ca%2Fsafety%2Fphotos%2Ffumehood1.jpg" width=252 border=1></TD> <TD> <DIV align=center> <IMG height=312 src="https://img1.daumcdn.net/relay/cafe/original/?fname=http%3A%2F%2Fbiology.mcgill.ca%2Fsafety%2Fphotos%2Ffumehood_fig.jpg" width=415 border=1></DIV></TD></TR></TBODY></TABLE><BR> <TABLE cellSpacing=0 cellPadding=0 width="95%" border=0> <TBODY> <TR> <TD> <P><SPAN class=style11><BR> </P></SPAN></TD></TR> <TR> <TD> <DIV align=justify> <DL> <DT><FONT face=Verdana><B>CLEAN BENCHES (or LAMINAR FLOW HOODS)<BR></B>Protect your <B><I>samples</I></B> from contamination coming from you and the room. The air is blown at you.</FONT> </DT></DL></DIV></TD></TR></TBODY></TABLE><BR> <TABLE cellPadding=10 width="95%" bgColor=#99ccff frame=border> <TBODY> <TR> <TD> <IMG height=267 src="https://img1.daumcdn.net/relay/cafe/original/?fname=http%3A%2F%2Fbiology.mcgill.ca%2Fsafety%2Fphotos%2Flaminar_hood.jpg" width=198 border=1></TD> <TD> <DIV align=center> <IMG height=303 src="https://img1.daumcdn.net/relay/cafe/original/?fname=http%3A%2F%2Fbiology.mcgill.ca%2Fsafety%2Fphotos%2Fclean_bench.jpg" width=415 border=1></DIV></TD></TR></TBODY></TABLE><BR> <TABLE cellSpacing=0 cellPadding=0 width="95%" border=0> <TBODY> <TR> <TD> <DIV align=justify> <DL> <DT><FONT face=Verdana><B>BIOLOGICAL SAFETY CABINETS type II<BR></B>Protects <I><B>you, your samples and your environment from particulate contamination</B></I>. They are <B><I>NOT</I></B> designed for harsh or radio labeled chemicals. To be used for work with low to moderate risk agents <B><I>NOT</I></B> with high-risk pathogens. HEPA (High Efficiency Particulate Air) is the essential component of these cabinets.<BR></FONT> <DT> </DT></DL></DIV></TD></TR></TBODY></TABLE> <TABLE cellPadding=10 bgColor=#99ccff frame=border> <TBODY> <TR> <TD> <IMG height=174 src="https://img1.daumcdn.net/relay/cafe/original/?fname=http%3A%2F%2Fbiology.mcgill.ca%2Fsafety%2Fphotos%2Fcabinet.jpg" width=250 border=1></TD> <TD> <IMG height=294 src="https://img1.daumcdn.net/relay/cafe/original/?fname=http%3A%2F%2Fbiology.mcgill.ca%2Fsafety%2Fphotos%2Fcabinet_type2.jpg" width=415 border=1></TD></TR></TBODY></TABLE> <P> </P> <P> </P>