David Clark Model 27 Hearing Protector

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Part# 11-09205
MFR Model# 18220G-05


The Over-the-Head style Model 27 hearing protector combines comfort, durability and quality construction with superior low frequency noise attenuation.
California Prop 65 Warning Symbol

WARNING: The product may contain and/or expose you to a chemical(s) or substance(s) which are known to the State of California to cause cancer and/or birth defects or other reproductive harm. www.P65Warnings.ca.gov


  • Adjustable headset and stirrup assembly assures uniform headband pressure for a personalized fit and all day comfort
  • Weather-resistant, soft foam head pad with breathable, ribbed design for eliminates 'hot spots' provides added comfort
  • Soft, foam-filled ear seals are easily replaceable
  • Ear cups made of high-impact ABS with patented rib construction for added toughness
  • Work-ready, rugged design stands up to the most demanding work environments
  • Certified Noise Reduction Rating (NRR): 22 dB
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Love the ear muffs I bought, really strong and blocks out sound.

Max S
February 12, 2021

I use it primarily when Im using my chainsaw. Ive got a medium sized head (7 1/8 hat size) and the ears are fairly comfortable. And they knock out the noise.

November 24, 2020

Excellent and quick service. Great product

November 4, 2019


Please note, Aircraft Spruce's personnel are not certified aircraft mechanics and can only provide general support and ideas, which should not be relied upon or implemented in lieu of consulting an A&P or other qualified technician. Aircraft Spruce assumes no responsibility or liability for any issue or problem which may arise from any repair, modification or other work done from this knowledge base. Any product eligibility information provided here is based on general application guides and we recommend always referring to your specific aircraft parts manual, the parts manufacturer or consulting with a qualified mechanic.

Q: Is there a db reduction rating for these David Clark Model 27 hearing protectors?

Certified Noise Reduction Rating (NRR): 22 dB

Q: Are these David Clark model 27 protectors made is the USA?

Yes, David Clark products are made in the USA.

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