Sentences with phrase «blocking air movement»

But fortunately the primary factors that increase risk are now widely known i.e. placing an infant prone (face down) for sleep, using soft mattresses, maternal smoking, overwrapping babies or blocking air movement around their faces.

Made from stretchable natural wool, these covers provide protection without blocking air movement.

Not exact matches

Cut - off highs, also called blocks because they disrupt the movement of west - to - east air, are becoming more prevalent in the Arctic, he says.

Training — Passenger & Household Goods Specialist Course (09/10/1983) 260 Formal training on federal and military transportation regulations, instructions, and directives; passenger and personal property entitlements; quality assurances evaluation procedures, United States and foreign customs regulations, and warehousing procedures; military passenger, freight, and personal property rate computations; packaging methods, specifications, and orders; hazardous cargo requirements; blocking, bracing, and tie - down principles; and carrier capabilities and procedures for movement of passengers, cargo, and personal property in military and commercial air, rail, truck., and water systems.