Killing viruses. Need help.

I am very worried about the health of my family in winter and I don’t want my children and parents to get sick. I decided to disinfect the house, but so far I have not received good advice. They say that steam can be used to treat surfaces in the house. Anyone familiar with this technology?

We did the treatment at the factory with an industrial steam cleaner and it was very effective. True, it was done by experts. Maybe there are some...

I've got a Karcher steamer but it's not very powerful. You need a commercial steamer to be of much use.