Ideal for areas where a compressor is readily available, this air-driven model requires 30 CFM at 40 psi. It uses an aluminum fan for explosion-proof requirements and includes a steel base, polyethylene housing, 2-stage filter, regulator, and lubricator. If used in hazardous environments, use statically conductive ducting.

This unit can be used for both delivering fresh air or extracting contaminated air. Tough steel construction with handle and weighing only 27 lbs. makes this blower easy to transport. Add 12" standard ducting for greater flexibility. High RPM motor.

Same as our 12", but includes explosion-proof UL/CSA listed, single phase motor and NEMA rated 115V plug and socket. Meets Class I, Division I and II, Group E, F, G Hazardous Requirements. Warning: Explosion-Proof Blowers must be used with statically conductive ducting.

An economy version of the Standard Blower, this lightweight blower comes in at only 34 lbs. It has a tough metal base and durable ABS housing and works great with generators. Free air output: 1277 cfm.

Electric, explosion-proof motor is UL/CSA listed. Single-phase motor includes NEMA rated 115V plug for use with explosion-proof socket (included). It offers tough steel construction and meets Class I, Divisions I and II, Groups C and D and Class II, Divisions I and II, Groups E, F and G Hazardous Location Requirements. Warning: Explosion-proof Blowers must be used with statically conductive ducting.

For very large confined spaces this large, 16" axial blower delivers high output for drawing or pushing air. The durable and tough metal housing holds a 6 blade impeller. It is designed for easy stacking for multiple blower use.

The Saddle Vent® Tank and Manhole Ventilation provides continuous access and sunlight to manholes during ventilation. Unobtrusive vents take up only 3" of space allowing for easy entrance and exit. Manhole Saddle Vent® is 43 ½"L x 14"W x 8" outside diameter. Tank vents measure 27 ¾"L x 13 ¾" W x 8" outside diameter. Universal mount uses the weight of the manhole cover to hold saddle vent in place. 90 degree elbow maintains unrestricted air flow between vent and ducting.

For speed drying of wet carpets, pads, floors and walls, this blower is powerful, durable and lightweight. This three speed model offers four angle operating positions. Balanced carry handle makes it easy to transport. They’re also stackable for convenient storage. UL approved, thermally protected motor with safety circuit breaker and 25' water resistant cord.

The Venturi Blowers from Allegro are a perfect solution to moving air in refineries, utility and power plants, shipyards, paper and pulp plants, the marine and steel industry and manhole operations. Anywhere where fumes that may be poisonous, explosive or hazardous from process towers, tanks, large pipes or confined space need to be removed.

Allegro’s Complete Ventilation Systems include all the most-asked-for equipment for your confined space site. The systems include a choice of Allegro’s most popular blowers, six feet and fifteen feet of ducting with a storage bag, a Saddle Vent®, a 90° Elbow, and a Universal Mount. The Centrifugal Blower Systems offer lightweight portability with the highest output available. See individual blower descriptions for CFM, weight and other specifications.