Absolutely. Welding emits intense light and sparks. Always wear a welding helmet, gloves, welding jacket and safety glasses. Also, ensure proper ventilation.
It depends on your work.
DIY/Home repairs: MIG welders are great, they are easy to use.
Heavy-duty/Precision work: TIG welders are ideal.
Outdoor/Rugged conditions: Stick welders are best.
Multipurpose use: A multi-process welder is a good choice.
MIG: Uses a continuous wire, it's fast and easy to learn.
TIG: Uses a tungsten electrode, gives very clean and precise welds, good for thin metals.
Stick: Uses a flux-coated electrode, works well outdoors, but is a bit slower.
Cleaning: Keep the machine clean.
Cable check: Ensure cables are not damaged.
Consumables: Regularly replace parts like tips and electrodes.
Storage: Store the machine in a dry place.