MAX-LITE™ (NRR 30) low pressure ear plugs offer long term user comfort not found in other pre-shaped foam ear plugs. The non- irritating, non- allergenic self-adjusting foam recovers to fit virtually any ear canal. MAX-LITE™ is ideal for that portion of the population with smaller ear canals. Attentuation tested in accordance with ANSI S3.19- 1974. Noise reduction rating NRR 30dB, SNR 34 dB.