Yes, most compressors these days are real loud. The sparks probably are the brushes.
Hope it lasts; I never have had luck with those small compressors. I would have gotten a real one with a tank, but they start near $100.
I have a small Kobalt 3 gal compressor I picked up off CL. It works ok but has a bit of burning smell when it works hard. Probably dust on the compressor. Don't use it much as I have a big compressor for the garage.--
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