HEPA Filters: Our favorite cordless vacuums feature HEPA filters, which are designed to capture even the smallest of particles and allergens (usually around 99.97%). This filtration system ensures ...
The Aviationist on MSN
Russia’s Su-57 Flies with New Izdeliye 177 ‘Gen. 5’ Engine
The development of the Izdeliye 177 appears to be driven by the need to upgrade the earlier Su-57 production models and offer a new powerplant to ...
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