Does it need to be diluted before use?

No. The manufacturer describes it as a ready-to-use solution 5% and immediate-use surface disinfectant.

What does it smell like, and is it harsh to breathe when sprayed?

The listing says it has a pleasant fresh lemon scent and is alcohol-free. Reviewers also report that it smells good and does not scratch the throat when sprayed.

Is it okay if it touches skin or if the spray mist reaches the eyes?

Customer reviews state that skin contact did not burn, the vapor did not burn the eyes, and accidental hand contact with a not-insignificant amount caused no irritation after a longer time.

What surfaces and places can it be used on?

The manufacturer says it is for all washable and sensitive surfaces, including physiotherapy, sports

विश्लेषित उत्पाद›MED Surface Disinfectant 5 L Ready-to-Use Solution for Care Facilities Physiotherapy Sports Equipment Bathroom and Much More. Disinfectant Cleaner Quick Disinfectant