2. Mutt Muffs
  3. DDR337

Mutt Muffs DDR337 User manual

  • Hello! I am an AI chatbot trained to assist you with the Mutt Muffs DDR337 User manual. I’ve already reviewed the document and can help you find the information you need or explain it in simple terms. Just ask your questions, and providing more details will help me assist you more effectively!
Modified6/7/2006 Page1 of 3
TheUn iversityofTexasat Dallas
HearingProtectionSafetyManual
Modified6/7/2006 Page2 of 3
HEARINGPROTECTIONMANUAL
I. PURPOSE
Thissectionistobeaguideforprotectionfromhearingloss.Protectionofhearing
inindustrialnoisecanbeaccomplishedthroughcontrolofnoiseexposureand
throu ghtheuseofhearingprotectiondevices.
II. PROTECTIVEEAREQUIPMENT
Ifengineeringandadmini strativecontrolsarenotpossi ble,thenproperprotective
hearingprotectionshallbeprovided.
Sincetheprincipalentranceforsoundpressureontheeardrumisthroughthe
externalearcanal,blockingthepassageofsoundwavestoth eear drumprovidesan
effectivemethodofreducingthesoundpressurereachingtheinnerear.
Twotypesofearpr otectionaree arplugsandearmuffs.
A. EarPlugs
1. Properlyfittedea rplugscanprovidenoiseattenuationonthe
orderof30decibels(dB)overaspecificfrequencyband.Itis
importanttomatchthefrequencybandoftheearplugtothe
noisehazard.
2. Earplugsareef fectiveonlyifproperlyseated.Instructthe
employeestoinserttheplugsbyteachingthemtopulltheear
upandback.
3. Earplugsmustbereseatedfromtimetotimeduringthecourse
oftheworkday sincenormalbodymovement(chewing,
yawning,talking)willcausethemtoworkloose.
4. Insertingearplugswillnotdamagetheearnorwill wearing 
themdamage theearcanaloreardrumifbotharedone
accordingtoinstructions.
5. Ifear plugsdonotfittightly,theywillnotprovideprotection.Ear
plugsmaybeuncomfortableforafewdays,butlikeanything
new,employeeswilleventuallygetusedtothem.
6. Earplugsshouldbewashedinsoapywarmwatereverythreeto
fourdays.Thedangerofirritationtotheskinlining theear
canalari sesfrompoorhygiene.
7. Earplugsmaybecomehard,orshrink;allemployeeswearing
earplugsshould beinstructedtoreportto thesupervisorwhen
thisoccursandtomakearrangemen tstoobtainanewpair.
8. Drycottondoesnotprovideanyearprotection.
Modified6/7/2006 Page3 of 3
Employeesmustbetoldtheyarerequiredtowearearprotectioninhazardous
conditions.
/