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Gold/Mining/Energy : Zentek Ltd.

ZEN.V 1.080

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3:36 PM EST

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To: Reflection who wrote (41088)	1/6/2023 10:04:08 AM
From: ValuHunter	14 Recommendations Read Replies (1) of 53970

Totally agree with reposting this little gem, Reflection. I have suggested in the past that the HEPA filters may well go by way of the dinasaur. The savings in fuel for airlines is very likely significant. Consider these passages from Candu's post: The authors found that the filtration efficiency ranged from 99.46% to 99.99% in aircraft that are still being used. I think our ZenGuard masks were were found to have the same filtration efficiency. While we do not have the data from Phase II HVAC testing, I think it is safe to say there is no reason not to expect the same data for HVAC, as masks. To reduce the pressure drop, the authors suggested the use of nanofiber media to replace glass fiber media. The author is Dr. Leppin. I believe he was pulled from the aircraft group testing airplane cabin filtration to design and carry out the experiments for the the real world testing for indoor air quality. Given his findings for Phase II HVAC tests, I'm not surprised he has suggested testing of nanofiber filters to compare with Airline HEPA filers. This suggestion by Leppin is reassuring for us in that it speaks to our HVAC filtration efficiency Phase II results being comparable. In their tests, the authors tests found that the filter material change pressure drop was reduced from 84.7 Pa/(cm/s) to less than 28.5 Pa/(cm/s). So changing the HEPA aircraft filter for a ZenGuard coated filter media resulted in one third of the power requirement to move the same amount of air in the aircraft. Now what does that drop in power requirement translate into fuel savings. Once again, if ZenGuard filtering is proven to be comparable to the HEPA filter we will have disrupted the aircraft filter industry. Lots of food for thought! Thanks again to Candu for finding this paragraph and Reflection for reposting! VH

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