Instruction: Given the user's review, identify the user's sentiment from the listed options. Answer using one of the options.

Input:
A must have for a field job or DIY around the house. Made in the US of A by MSA. Not much more to say. Invest in your lungs!

Options:
A: very positive
B: positive
C: neutral
D: negative
E: very negative
Answer: A: very positive