Kaivac - Overpriced, over-reaching
Cleaning equipment manufacturers are pushing the insane level of germ-a-phobia because it SELLS THEIR STUFF FOR THEM.
Is it real? NO. Is it worth the money/ ABSOLUTELY NOT. Does it save time and money? NO WAY. Recent studies have shown that simple cleaning, hand washing, and basic hygiene are far more effective at reducing infection and disease than most other treatment.
As far as this "steam" and pressure scam goes, so once you've done it, and Joe Blow comes in and infects the place 20 minutes after you're done - WHAT THEN? Bring in the Kaivac after each restroom use? Who will foot the bill? NOBODY.
There is NOTHING that will ensure ANY PLACE is germ free, safe, and not inhabited by "bugs".....so the answer? ....
Remember - WE (humans) carry "bugs" and germs...AND WE DO IT ALL THE TIME ! Since most people's bodies can handle everyday exposure, everything will be okay......SOOooo.....
Wash your hands, clean your restrooms and other "high-touch" surface areas regularly. DO NOT over use chemicals, because you will only make matters worse, and also keep in mind etiquette for sickness, i.e., cover your mouth and nose when sneezing or coughing, don't shake hands after coughing or sneezing, generally keep your hands away from your eyes, nose, and mouth.
Get regular exercise and stay in decent shape.
We live in an imperfect condition - don't freak out and get too "bug-a-booed" about this stuff, just use common sense and stay healthy.