Now cleaning companies mainly purchase equipment for steam cleaning. For example, information on heavy duty commercial steam cleaner can be found here https://www.fortador-usa.com/blog/top-best-heavy-duty-industrial-steamers-for-cleaning-choosing-industrial-steam-cleaner the article has a lot of useful information on the advantages and disadvantages of steam cleaning. I will say this - for me, the steam cleaner is now in first place among the tools.
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