[chbot] Oxygen Concentrator - Zeolite Molecular Sieve

[Andrew Errington]

Hi Mark,

Hack-a-day recently had a couple of articles about diy oxygen
concentrators, particularly in regard to their potential usefulness in
India:

https://hackaday.com/blog/?s=Oxygen

The articles discuss Zeolite and how it's used.

Andrew

On Mon, 17 May 2021, 10:52 Mark Atherton, <markaren1 at xtra.co.nz> wrote:

> wow, thanks.
>
>
> -mark
>
> On 17 May 2021 at 10:01 David Closey <david.closey at gmail.com> wrote:
>
> Zeolite has been implicated in lung cancers (mesothelioma)
> Not as bad as asbestos but I wouldn't unpack or pack it until you have a
> plan for dust control and respiratory protection
>
>
>
>
> Safety data sheet excerpt
>
>   1.1 Product identifiers Product Name : Brand : ACS Material Molecular
> Sieve SSZ-13 Zeolite ACS Material LLC
>
> SECTION 2: HAZARDS IDENTIFICATION 2.1 Classification of the substance or
> mixture GHS Classification in accordance with 29 CFR 1910 (OSHA HCS) Eye
> irritation (Category 2A), H319 Specific target organ toxicity - single
> exposure (Category 3), Respiratory system, H335
>
>   8.3 Personal protective equipment Eye/face protection Safety glasses
> with side-shields conforming to EN166 Use equipment for eye protection
> tested and approved under appropriate government standards such as NIOSH
> (US) or EN 166(EU). Skin protection Handle with gloves. Gloves must be
> inspected prior to use. Use proper glove removal technique (without
> touching glove's outer surface) to avoid skin contact with this product.
> Dispose of contaminated gloves after use in accordance with applicable laws
> and good laboratory practices. Wash and dry hands. Body Protection
> Impervious clothing. The type of protective equipment must be selected
> according to the concentration and amount of the dangerous substance at the
> specific workplace. Respiratory protection For nuisance exposures use type
> P95 (US) or type P1 (EU EN 143) particle respirator. For higher level
> protection use type OV/AG/P99 (US) or type ABEK-P2 (EU EN 143) respirator
> cartridges. Use respirators and components tested and approved under
> appropriate government standards such as NIOSH (US) or CEN (EU).
>
> David
>
> On Sat, May 15, 2021 at 8:20 PM Mark Atherton < markaren1 at xtra.co.nz>
> wrote:
>
> Just been given an old Oxygen Concentrator with exhausted Molecular
> Sieves.
>
> Re-packing the sieves looks like a straightforward process if I can get
> the correct grade of Zeolite.
>
> Anyone have any experience with such a venture, and where I should go
> shopping for such ?
>
> Thanks,
>
> Mark
>
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