: " Acer PH p Widescreen LCD Monitor (Black): Computers & Accessories These openings Acer P186H not be blocked or covered. The openings should never be blocked by placing the product on a bed, sofa, rug or other similar surface. This product should never be placed near or over a radiator or heat register, or in a built-in installation unless proper ventilation Acer P186H provided. Never push objects of any kind into this product through cabinet slots as they may[…]