‘Life-saving’ nose spray that kills 99.9% of viruses begins production in Israel

> She acknowledged that the experiments took place outside the human body, in test tubes, and do not provide definitive proof of how effective the spray will prove in nasal passages

So yeah... not exactly a miracle cure, in my layman opinion. Even if it does prove efficacious in human nostrils, it won't do much for, for example, mouth-breathers.

So each spray kills viruses for 12 hours?