NoisebusterÂ® Electronic Noise Canceling (ENC) earmuff from Pro Tech protects against a wide range of noise frequencies, especially low-frequency noise generated by industrial engines, motors and fans. The earmuff can be worn over the head (26dB NRR) or behind the head (25dB NRR). ENC component gives up to 20dB of added noise reduction within low-frequency bandwidth of 20-800 Hz. Pro Tech Communications, Inc., Fort Pierce, FL. www.noisebuster.net
NFPA ® for Electrical Safety in the Workplace is revised every three years, providing the most up-to-date requirements for safe work practices to reduce exposure to electrical hazards. This program analyzes several significant changes in 70E ® and is designed to clarify the reasoning behind the changes, and assist in determining how the changes impact employees and employers.