Metal Traceable Light Blue Ear Plugs offer superior protection and comfort with a Noise Reduction Rating (NRR) of 27dB, tested at an independent and accredited laboratory. Their spherically curved flange design conforms to the oval shape of the ear, providing a comfortable fit, while the patented triangular stem ensures a secure insertion. Washable for improved hygiene, Metal Traceable Plugs feature fully metal-infused earplugs and cords for complete detectability and are made in the USA.
| Attenuation data | |||||||||
|
Frequency in Hz
|
125
|
250
|
500
|
1000
|
2000
|
3150
|
4000
|
6300
|
8000
|
|
Mean (dB) Attenuation
|
34.5
|
35.5
|
37.4
|
34.4
|
37.8
|
40.7
|
40.9
|
43.1
|
45.4
|
|
Standard Deviation
|
5.6
|
5.4
|
5.1
|
4.1
|
4.0
|
4.6
|
3.8
|
3.7
|
2.6
|
|
NRR=27dB
|
ANSI S3.19-1974 | ||||||||
Currently, we offer free shipping for orders over $500 in California.
Also, we offer free shipping for orders over $1000 across the US.
This offer is valid unless otherwise noted in special promotions.
Same day shipping for order placed before 2:00 pm PST Monday-Friday.
Orders received after 2:00 pm will be shipped the following business day
Shipping to Continental USA, with adjusted cost and time for Alaska and Hawaii.Â
Questions? Contact us, chat, or call at (510) 783-4500
