09-07-2022, 12:15 AM
I use both always.
3M PELTOR X5A Over-the-Head Ear Muffs, Noise Protection, NRR 31 dB
Howard Leight MAX-1 Uncorded NR33 Foam Earplugs
Unfortunately, NRR 31 + NRR 33 does not equal 64 dB reduction.
The rule of thumb is take the best number and add 4. So, in my case it would be 37 dB reduction at best.
https://www.amazon.com/dp/B00CPCHBCQ?psc...ct_details
https://www.amazon.com/gp/product/B0013A...UTF8&psc=1
3M PELTOR X5A Over-the-Head Ear Muffs, Noise Protection, NRR 31 dB
Howard Leight MAX-1 Uncorded NR33 Foam Earplugs
Unfortunately, NRR 31 + NRR 33 does not equal 64 dB reduction.
The rule of thumb is take the best number and add 4. So, in my case it would be 37 dB reduction at best.
https://www.amazon.com/dp/B00CPCHBCQ?psc...ct_details
https://www.amazon.com/gp/product/B0013A...UTF8&psc=1

