June 2025: I replaced the Shark Matrix RV2300S with the 3i G10+ as the best budget robot vacuum for pet hair. While the Shark was a solid budget cleaner when it first came out, its suction power isn't nearly as strong as the 18,500 Pa of the 3i G10+. The 3i G10+ also has small obstacle avoidance and a pet camera.
But agar’s superior qualities come with complex chemistry. “To speak of agar as a single substance of certain (if known) chemical structure is probably a mistake,” wrote phycologist Harold Humm in a 1947 article. According to the Food and Agriculture Organization of the United Nations, agar is merely recognized as “a hydrophilic colloid extracted from certain seaweeds of the Rhodophyceae class.” In terms of its actual composition, agar is mostly a combination of two polysaccharides, agaropectin and agarose, which themselves are complex and poorly-characterized polysaccharides made mostly (but not exclusively) from the simple sugar galactose.8
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2.9 SiLU（Swish）