Conditions include working inside, working around machines with moving parts and moving objects, working around moving objects or vehicles, radiant and electrical energy, working closely with others, working alone, working protracted or irregular hours, excessive heat, humidity, excessive or intermittent noise, grease, oils, solvents, slippery or uneven walking surfaces, working on ladders or scaffolding, vibration, and traveling by car, van, bus, and airplane. Equipment used in performing only the essential functions include computer and related equipment, calculator, copier, fax machine, telephone, industrial food processing equipment, personal protective equipment, hand and power tools, welders, pumps, forklifts, ladders, motors, electrical systems, air, gas, water, and steam plumbing systems, pressure vessels, diagnostic shop tools, ohm meter, testing equipment, dolly, and automobile.