Is it OK to take out my earplugs for just a few minutes while I’m working?

Removing an earplug for just a few minutes in an area where HPD is mandated during the workday will negatively affect overall protection effectiveness, raising your NIHL risk dramatically.

Answer Extra: 

Removing a 30 NRR earplug for only five minutes reduces effective protection to only 26 dB. Removing the earplug for 30 minutes and the effective protection drops to 18 dB during an eight-hour shift. This seemingly small act can turn adequate protection into increased NIHL risk.

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source: www.howardleight.com