Which of the following is a method of controlling welding fumes?

Using natural ventilation outdoors is an effective method for controlling welding fumes because it allows for the dilution and dispersion of harmful particles and gases generated during the welding process. When welding occurs outdoors, the open air helps carry away fumes, reducing the likelihood of inhalation and exposure to toxic substances. This natural airflow is particularly beneficial because it can significantly lower the concentration of harmful fumes in the immediate environment around the welder.

Other methods of fume control may not be as effective in specific scenarios. For example, wearing a full-face shield is important for protecting against sparks and flying debris but does not address the respiratory risks associated with fumes. Increasing the volume of air in a restricted space could potentially exacerbate fume concentration if adequate exhaust systems are not in place. Lastly, limiting movement during welding operations does not contribute to fume control and may even hinder the effective use of ventilation methods.