Do keep the glass transition temperatures for your filaments in mind. 150°, or even 165°F may be fine for PETG, but PLA will soften at those temps. Also, check your local liquor stores for anything in the 95% range. Makes a great cleaner in general, and should take care of any unforeseen offgassed chemical deposit issues.

Even though I expect any such volatiles to remain a gas and get shot out the exhaust, it’s better to be safe.