• NRR=30 dB - Tested at an independant NVLAP accredited laboratory.
• Manufactured from super-soft PVC for its unique performance characteristics.
• New and improved foam responds to body heat by getting softer with use.
• The only foam specified by the United States Military.
• Optimal "recovery time" allows for deeper insertion, more secure fit and less "backing out" which is particularly important for those with smaller ear canals. Therma-Soft 30™ provides an excellent seal for every user.
• Plugs are bright blue and are available with or without yellow cord, packaged in heat sealed bags, 200 pair per dispenser.
• Also available in special 50 pair dispenser pack for low volume users.

Attenuation data

Frequency in Hz	125	250	500	1000	2000	3150	4000	6300	8000
Mean (dB) Attenuation	39.7	39.0	40.9	37.2	37.7	45.3	46.7	47.2	47.1
Standard Deviation	4.6	5.5	5.4	4.0	2.8	4.4	3.9	3.6	3.6
NRR=30dB