QUESTION: Fix punctuation: Tesla Gaia Mod with variable voltage
ANS: Tesla Gaia Mod with variable voltage.

QUESTION: Fix punctuation: Consistent results when cutting engraving and marking
ANS: Consistent results when cutting, engraving and marking

QUESTION: Fix punctuation: In many cases good results can be achieved by a higher frequency of airing out maintaining a constant temperature of 2022o C and thoroughly cleaning the buildings
ANS: In many cases, good results can be achieved by a higher frequency of airing out, maintaining a constant temperature of 20–22o C and thoroughly cleaning the buildings.

QUESTION: Fix punctuation: Vderstad invests further in production
ANS:
Väderstad invests further in production