API Developers. If you are a Google Apps API developer and use ClientLogin authentication, after you enroll in 2-Step Verification, you'll need to use an application-specific password in place of your regular password.
Answers. Best Answer: It's fine to reuse ear plugs as long as you clean your ears each time before inserting them. You'll need to replace them occasionally, depending on how often they're used. I've found that the yellow cylindrical ones work better and stay clean longer than the standard orange ones.
Gently twist earplug while slowly pulling in an outward motion for removal. Acoustical Check. In a noisy environment, with earplugs inserted, cup your hands over your ears and release. Earplugs should block enough noise so that covering your ears with your hands should not result in a significant noise difference.