From: Wayne Phan <Wayne.Phan**At_Symbol_Here**POMONA.EDU>
Subject: [DCHAS-L] Ear muffs
Date: Mon, 18 Aug 2014 18:31:23 +0000
Reply-To: DCHAS-L <DCHAS-L**At_Symbol_Here**MED.CORNELL.EDU>
Message-ID: 731700108A7439498BE12EC6F8A2585AF8FE51E2**At_Symbol_Here**


Hi all,



Some of the students in our biochemistry use a sonicator (Fisher Scientific Model 100 Ultrasonic Dismembrator).  This sonicator emits a high-pitched sound.  I know that in some labs, people wear ear muffs when using the sonicator.  I think it would be the safest thing if our students also had ear muffs to wear when using this instrument.  Any recommendation for an appropriate lab-safety type of earmuff?





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