Figure 3From: In vitro cytotoxicity of Manville Code 100 glass fibers: Effect of fiber length on human alveolar macrophagesMicroscopic analysis of primary human alveolar macrophages engulfing glass fibers. Panel A demonstrates the ability of the alveolar macrophages to engulf 8 μm glass fibers. Panel B verifies effective phagocytosis of 20 μm glass fibers by human alveolar macrophages.Back to article page