PETALING JAYA: The nano mist spray should not be used directly on humans as it could lead to health concerns, says Tan Sri Dr Noor Hisham Abdullah.

       The health director-general also said that its actual effectiveness at killing the Covid-19 virus is dependent on several factors.

       “The effectiveness of this device is dependent on its dispersion ability, the disinfectant type used and its concentration, as well as the contact time between disinfectant and surface,” he said in a statement on Tuesday (Sep 21).

       Currently, the Health DG added that several surface disinfectants have been identified to be effective against SARS-CoV-2 such as alcohol 70%-90%, hydrogen peroxide, thymol, quaternary ammonia, and chlorine-based solutions.

       However, the Health Ministry warned that the disinfecting solution mentioned is for the purpose of surface disinfections and not meant to be used directly on humans.

       “This is due to the fact that contact with some of this solution may cause irritation to the eyes, skin, respiratory and gastrointestinal system. It is also important to highlight that the use of nano mist does not replace the requirement for standard surface cleaning,” said Dr Noor Hisham.

       Nano mist sprayers ranging from spray guns to handheld sprays delivers particles which are widely used for various purposes including cosmetics, perfume, domestic and industrial use.

       The public can view the Guidelines on Surface Disinfectant Registration stipulated by the ministry on the National Pharmaceutical Regulatory Agency (NPRA) official website at www.npra.gov.my