Oxygen toxicity. Oxygen toxicity is a condition resulting from the harmful effects of breathing molecular oxygen (O 2) at increased partial pressures. It is also known as oxygen toxicity syndrome, oxygen intoxication, and oxygen poisoning.
Mahogany wood is a richly colored lumber that is among the more valuable wood species in the world. It is known for its unique pink coloring, which develops into a deep reddish-brown as the wood ages.Unlike alternative wood products, such as oak or pine, mahogany features very few knots or voids.ahogany wood has a fine grain without knots. Mahogany wood takes well to a variety of stains. Mahogany wood is used to make the parts of some electric guitars. Mohagany may be used to build shelving and cabinets.
Lauan (red lauan, white lauan): This hardwood, a mahogany look-alike, is used in less expensive grades of furniture; it is often sold as Philippine mahogany. The wood varies in color from tan to brown to dark red, with a ribbonlike grain pattern similar to that of true mahogany.Red lauan is more expensive than white.irch (yellow birch): Birch, a common hardwood, is used in all aspects of furniture construction. The wood is light yellowish brown, very similar in color and in grain to maple. The grain is quite pleasing. Birch is close-grained.