Outdoor water filters #1 - lots of claims but no proof ? MSR, Grayl and Sawyer questioned

First of the videos about outdoor water filters and intransparency of the industry. What do manufacturers claim and is there actually proof ? Looking at some models, disassembling the claims and describing test procedure. re-upload with fixed audio. Sources (Links used in Video) - those are NOT Affiliate Links. NO Advertisement ! For Transparency and informational purpose only ! https://www.msrgear.com/water-treatment/filters-and-purifiers/miniworks-ex-microfilter/56425.html https://www.msrgear.com/blog/water-101-decoding-water-filter-testing-claims/ https://www.msrgear.com/blog/behind-the-scenes-video-msrs-water-research-lab/ https://www.msrgear.com/blog/gear-institute-tours-msrs-water-research-lab/ https://www.msrgear.com/blog/?s=Water https://www.amazon.de/BERGKVIST%C2%AE-Outdoor-Wasserfilter-Flasche-FJ%C3%84LLKLAR/dp/B0CDPR2XZV/ https://www.ahlstrom.com/globalassets/products/filter-media/ahlstrom_disruptor_folder_web.pdf https://www.sawyer.com/products/mini-water-filtration-system https://assets-global.website-files.com/61549f9352f3558157a226ea/619286e5fc849d6376a6de19_point-one-microtest.pdf https://grayl.com/products/ultrapress-replacement-filter-purifier-cartridge https://thegrayl.zendesk.com/attachments/token/ojABZbqtnGPHyVvOY52dEl1zB/?name=Testing+Results+Document_v4+%281%29+%281%29.pdf Other shown documents were received by e-mail and cannot be linked. They need to be requested from the supplier/manufacturer.