Open the windows or better, find a simple ventilation solution? I did one like this.
The following is from the BL store page. It mentioned possible odor due to higher printing temp as the reason for ventilation. But yes, if the additive(s) alter PLA Tough to the point that the toxicity profile is significanlty different from other PLAs, then it should state so.
“PLA Tough+ requires a higher printing temperature to deliver enhanced mechanical performance, which may produce some odor during printing. Make sure your workspace is well-ventilated.”