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ClO2 gas protects at very low concentration

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  • ClO2 gas protects at very low concentration

    Protective effect of low-concentration
    chlorine dioxide gas against
    influenza A virus infection

    mice were protected from H5N1 infection through aerosoles by simultaneous exposure to
    extremely low dose of chlorine dioxyde gas

    apparantly there are bathroom air-freshening products using
    chlorine dioxide gas against odors. These should also be effective
    against flu-viruses ?!?

    m ... found this:


    ...chlorine dioxide, in quantities small enough to be safely ingested,
    and large enough to kill pathogens that are presently living in our body...

    doesn't sound very scientific from a gold-miner,
    but you got the idea

    careful about heart-side effects:

    some more links, I can't check this now, but maybe someone
    is interested and can report.
    Cl2O is 8* more expensive than chlorine

    chlorine dioxide generating sachet, low, medium, or high release, for 30 min, 1, 2, and 3 h.

    The delivery system for chlorine dioxide is becoming more efficient as well. Fresh-cut processors and researchers are now able to use sachet-type chlorine dioxide generators that are easy to use and safer to transport. The dry sachet creates a chlorine dioxide gas or a gas stabilized in water by mixing a package of sodium chlorite with an acidic activator. Another type of sachet generator works like a teabag in water. The bag “steeps” in tap water for six to 12 hours to create the predetermined concentration of chlorine dioxide in water.

    Hmmm... at least one source which seems legit has done some toxicity research:

    I had thought, it did kill the viruses right in the air ?!?

    do people living near paper bleeching factories get fewer
    influenza than average ?

    let me speculate a bit...

    could seasonality of influenza maybe be explained with concentration
    of some virus-destructive gases in the atmosphere ?

    chlorine dioxide depends on sunlight, also boiling point=11°,
    UV may play a role, all seasonal and longitude-dependent

    could we produce enough ClO2 to fill the atmosphere
    to kill the viruses ? would that be dangerous for ozone ?
    Well, probably not the whole atmosphere but maybe

    are there ClO2-generating air-freshening machines ?
    could be better than UV or HEPA or ionizers.

    I found the full paper here:

    the ClO2-molecules enter the droplets in the air, dissolve and attack the virus.
    However, what happens if the airosoles have dried and the viruses are moving in the air as
    singles or as clumps ? After some minutes, I assume most droplets have dried.

    In theory it could also be that the ClO2 enters the mouse-lung-tissue, dissolves
    and forms a protective solution which kills the viruses before they can enter
    a cell.

    Norio Ogata said:

    Yes, your question is quite interesting and is very important. I should have done that kind of experiment. I did not do the experiment to prove, positive or negagtive, the possibility whether ClO2 can really protect "cells" from virus infection by first treat cultured cells, wash out ClO2 and then add virus as you point out.
    The reason that I thought that virus was inactivated in the aerosols, not in the mice, is that in my previous work (paper attached), ClO2 inactivated proteins withinin a minute, and is "cosumed" by the reaction. Therefore, there is no ClO2 remaining in the reaction mixture after the reaction when ClO2 concentration is very low (see Fig.4, Fig. 5 and Table 3 of the attached paper). Anyway I should do the experiment that you pointed out.
    There is no problem at all that you post my reply to the bird flu forum
    I'm interested in expert panflu damage estimates
    my current links: [url][/url] ILI-charts: [url][/url]

  • #2
    Re: ClO2 gas protects at very low concentration

    for chlorine dioxide:

    here is a video of a presentation of a device by Ogata at the
    6th Birdflu summit in Bali March 2008:

    [click products , infection control products]

    it is offered for sale e.g. here:
    I'm interested in expert panflu damage estimates
    my current links: [url][/url] ILI-charts: [url][/url]


    • #3
      Re: ClO2 gas protects at very low concentration

      so, these early reported therapeutic effects of ClO2 on influenza
      by Vedder,Sawyer,Gilchrist,...
      apparantly were not confirmed later and ClO2 hadn't been
      used for influenza therapy.

      -------------------------------------------------------------------- Respiratory diseases

      As early as 1816, Wallace suggested that chlorine might have
      medical applications; and in 1833, Bourgeois was reported to have
      used it successfully in the treatment of tuberculosis (Gilchrist,
      1924). During the latter part of the nineteenth century and the
      first decades of the twentieth century, there were sporadic reports
      of the therapeutic effects of chlorine. Baskerville (1919) was of
      the opinion that small amounts of chlorine decreased the incidence
      of respiratory disease among workers. Vedder & Sawyer (1924)
      reported that chlorine inhalations were used in 1915 in Germany, to
      clear meningococcus and diphtheria carriers, and in 1918 in the
      USA as a treatment for influenza. They conducted a series of

      studies based on clinical observations that workers at a war gas
      production plant did not suffer from influenza during the great
      epidemic. They found that cultures of a variety of bacterial
      agents were effectively destroyed by exposure to chlorine at
      concentrations of 21 mg/m3 of air (0.021 mg/litre, 7.2 ppm), a
      level they considered well within the limit of safety for human
      exposure. The bactericidal action was reported to be greater in
      vivo. A 1-h exposure to 20 mg/m3 of air (6.9 ppm) effectively
      sterilized the tonsillar, postnasal, and pharyngeal surfaces of one
      subject, and a level of 15 mg/m3 (0.015 mg/litre, 5.2 ppm) cured or
      produced clinical improvement in 95% of a series of 931 patients
      suffering from a variety of respiratory tract infections. In a
      follow-up series of 93 patients with coryza, acute bronchitis,
      chronic bronchitis, or influenza, 100% were reportedly cured or

      The therapeutic effects of chlorine were further discussed by
      Gilchrist (1924). During World War I, medical officers assigned to
      the front lines observed an apparent immunity to influenza in their
      troops. They attributed this lack of susceptibility to the disease
      to chlorine exposure and therefore used chlorine to treat respiratory
      diseases. Following these observations and the work of Vedder &
      Sawyer, Gilchrist constructed an inhalation chamber and treated
      some 900 patients with chlorine. Those with infectious diseases
      tended to show improvement; those with asthma or hay fever did not.
      He was of the opinion that 1-h exposures to levels sufficient to
      produce mild irritation of the throat and eyes were the most

      While the results of these controlled therapeutic inhalations
      appear dramatic, the studies of both Vedder & Sawyer and Gilchrist
      were conducted without unexposed comparison groups. In Gilchrist's
      study, no attempt was made to document disease at the onset or to
      evaluate its evolution medically. The patients came with their own
      diagnosis and reported the outcome.

      Though these studies reflect an interesting and historical
      hypothesis for the medical application of chlorine, experience has
      not provided justification for its practical use in this context.
      I'm interested in expert panflu damage estimates
      my current links: [url][/url] ILI-charts: [url][/url]


      • #4
        Re: ClO2 gas protects at very low concentration

        On some of the ships, in 1918, inhalation chambers were used; they referred to the *zinc sulfate method*. So far, that's the only reference I've seen to that method.
        The salvage of human life ought to be placed above barter and exchange ~ Louis Harris, 1918


        • #5
          Re: ClO2 gas protects at very low concentration

          this all had been abandonned, no such usages today.
          They must have their reasons
          I'm interested in expert panflu damage estimates
          my current links: [url][/url] ILI-charts: [url][/url]


          • #6
            Re: ClO2 gas protects at very low concentration


            chlorine dioxide gas solution(CD) at concentrations ranging
            from 1 to 100 ppm produced potent antiviral activity,
            inactivating >/= 99.9% of the viruses with a 15 sec
            treatment for sensitization. The antiviral activity
            of CD was approximately10 times higher than that of SH.
            (sodium hypochlorite )
            I'm interested in expert panflu damage estimates
            my current links: [url][/url] ILI-charts: [url][/url]


            • #7
              Re: ClO2 gas protects at very low concentration

              there is a product called "Jim Humble MMS" which you shall swallow
              and produces chlorine dioxide when activated

              there seems to be a problem with side-effects

              I'm interested in expert panflu damage estimates
              my current links: [url][/url] ILI-charts: [url][/url]