temp is good, sauna remains nasty. Also:
> Wearing clothes in a sauna can trap heat and sweat, which makes the experience less comfortable and hygienic. Sweat also tends to collect in bathing suits such that it doesn’t evaporate and cool the body as intended, which counteracts the desired effects of a sauna.
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> Synthetic bathing suits may let off steam from the heat. This process can have negative effects on your health as well as that of other sauna guests. This is particularly important if you’ve been in a hot tub or swimming pool which has been treated with chlorine as it can cause steam released from swim-shorts to be mildly toxic.
https://www.austria.info/en-gb/inspiration/going-to-the-sauna/