This TPI Corporation MB 30-DY single phase 30-inch diameter mini blower has a yoke mount and is suitable for providing air circulation. The blade assembly, consisting of a steel hub and spider, holds the fan heads three aluminum paddles, which are enclosed by a high density polyethylene side housing and front and rear steel wire guards for strength and resistance to corrosion. The fan can be mounted using its yoke or using an optional wall or ceiling bracket (sold separately), and can be positioned horizontally or vertically for precise direction of air flow. The permanent split capacitor (PSC) motor provides both starting torque and the ability to run at variable speeds. The motor of the TPI mini blower is totally enclosed, making it suitable for use in conditions that standard, unenclosed motors are not, such as in the presence of dust or other airborne debris.Specifications