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Make sure you have proper ventilation and air filtering for that 3d printer.

Thanks for the info. I'm not printing much yet (Few grams of filament a day) but 3D printing doesn't smell good, in any sense.

Luckily I'm using PLA for printing, but I do plan to take the printer out to the balcony once I start printing "big" pieces.

Then wait until you have proper ventilation to start printing.