Work regularly requires exposure to extreme heat (non-weather), exposure to the risk of electrical shock, wearing a self contained breathing apparatus and exposure to bloodborne pathogens and may be required to wear specialized personal protective equipment, frequently requires exposure to wet, humid conditions (non-weather), working near moving mechanical parts and exposure to outdoor weather conditions and occasionally requires working in high, precarious places, exposure to fumes or airborne particles, exposure to toxic or caustic chemicals and exposure to extreme cold (non-weather). Work regularly requires standing, walking and speaking or hearing, frequently requires using hands to finger, handle or feel, stooping, kneeling, crouching or crawling, reaching with hands and arms and tasting or smelling and occasionally requires sitting, climbing or balancing, pushing or pulling, lifting and repetitive motions.