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28. Compressed air from the unit may contain carbon monoxide. Air produced is not suitable for breathing purposes. 29. Always use a respirator when spraying paint or chemicals. 30. The air pressure switch is set at the factory for optimum performance of your equipment. Never attempt to bypass or remove this switch as serious damage to equipment or personal injury could result from excessive air pressure. 2 KNOW YOUR COMPRESSOR Handle Air Filter Air Chuck Regulator Pressure Gauges Figure 1. Air C