This replacement shell is specially designed for the Miller Infinity Series helmet. It doesn't come with the lens and headgear, but you can add them separately. The product only includes the shell.

Using this replacement shell is easy. First, remove the old shell from your Miller Infinity Series helmet carefully. Then, align the new shell properly and attach it firmly. When using the helmet, make sure the shell is well - fixed. Also, avoid hitting the shell against hard objects. For maintenance, clean the shell regularly with a soft cloth and mild soap. Don't use harsh chemicals as they may damage the shell. If you notice any cracks or damage, replace the shell immediately for your safety.