An artistic technique to provide bacteria-free, safe & oxygen-rich water based on R&D at Panjab University, Chandigarh. H2O Sterilizer provides nascent oxygen [O] into water that attacks the cell wall of various microorganisms like- bacteria, viruses, fungi, algae, etc. present in water and results in their destruction even with small doses which are responsible for water-borne diseases like Cholera, Typhoid, Hepatitis, Diarrhea. This also helps in breaking of organic molecules (pesticides etc.), oxidizing iron, and elimination of bad odors like due to H2S (Hydrogen Sulphide) in water. Furthermore, nascent oxygen [O] is at least ten times stronger than Chlorine (Residues of Chlorine results in Colon Cancer) as a disinfectant and produce Oxygen as residue. H2O Sterilizer makes the water oxygen-rich and microorganism free that defines the “FRESHWATER”. Additionally, the ozonated water prepared by bubbling ozone in a closed stainless-steel container containing water can be added to a spray bottle and will stay concentrated for up to 15 minutes before reverting back to normal tap water. During this time, it can be sprayed on surfaces like doors, knobs, counters, shelves, etc. to disinfect them and making free from bacteria and virus-like SARS Corona Virus.