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ASTM Standard 42kg/m3 Density with lasting support. Arthur uses high density foam which is also noiseless, dustless and does not crumble, mat down or powder. It has no residual odor, will not aggravate common allergies, and its open cell structure allows the cushioning material to breathe, circulating air within the mattress during use.
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High Density Foam Complies to ASTM D3574 (American Society For Testing And Materials bulletin) 8/ 6 /4 inches HR foam Standard.
