8" Axial AC Plastic Mini-Pak Blower

Allegro 8" Axial AC Plastic Mini-Pak Blower — Lightest & Most Compact All-in-One Confined Space Ventilation Unit

The Allegro 9532-15 is an 8" axial AC plastic blower engineered for confined space ventilation in construction, industrial, and manufacturing environments. Its defining feature is an all-in-one design that stores 15 feet of ducting inside the blower housing, eliminating the need to manage separate components on the job site. Powered by a 1/3 HP motor and a 9-blade polypropylene fan, it delivers up to 791 CFM of free-air airflow in a package that weighs just 19 lbs — claimed to be the lightest and shortest unit in its class. The safety orange polyethylene housing is corrosion-, UV-, and chemical-resistant, making it suitable for demanding field conditions.

Technical Specifications

Unlike heavier centrifugal or metal axial blowers, the Mini-Pak's all-in-one ducting storage system and sub-20 lb. operating weight make it uniquely suited for jobs where portability and rapid setup are priorities. Its polyethylene housing resists corrosion, UV exposure, and chemicals — properties that metal-housing alternatives cannot match without additional coatings or treatments. For contractors who need a reliable, low-cost axial solution for shorter duct runs and smaller confined spaces, the 9532-15 delivers high output without the bulk.

Key Features & Benefits

All-in-One Ducting Storage

The compact design stores 15 feet of ducting inside the blower housing, creating a single self-contained unit. This eliminates loose components on the job site and dramatically speeds up setup, breakdown, and transport between locations.

Lightest and Shortest in Its Class

At just 19 lbs. with ducting included, this blower is claimed to be the lightest and shortest unit in the industry. Reduced carry weight lowers fatigue for workers moving equipment in and out of confined spaces or up and down ladders.

Durable Polyethylene Housing

The safety orange polyethylene housing is lightweight while being corrosion-, UV-, and chemical-resistant for long service life in harsh environments. A bottom enclosure protects electrical components from jobsite debris and moisture.

Molded-In Carry Handle

The integrated carry handle is molded directly into the housing, providing a secure, ergonomic grip without add-on hardware that can loosen or fail. This reinforces the unit's portability for single-person transport.

High Output Axial Airflow

The 1/3 HP motor and 9-blade polypropylene fan deliver 791 CFM free air, 703 CFM through one 90° bend, and 621 CFM through two 90° bends. This output level is well-suited for ventilating smaller confined spaces with minimal ducting runs.

Super Quiet Operation

The blower is described as super quiet, reducing noise exposure for workers in confined or enclosed environments. Lower noise levels also improve communication safety during confined space entry operations.

Safety Orange High-Visibility Color

The safety orange color increases visibility on active job sites, reducing the risk of the unit being overlooked or struck by equipment. High-visibility equipment is a practical safety measure in busy construction and industrial settings.

US and International Wiring Options

Available in standard 115V–230V AC/50–60 Hz configurations as well as a 220V AC/50 Hz international (E) version, giving contractors flexibility for domestic and overseas projects. Note: the E-version does not meet CSA C22.2 No. 113 requirements.

Common Applications

Confined Space Ventilation

Designed to supply fresh air or exhaust hazardous gases from confined spaces such as manholes, vaults, tanks, and vessels prior to and during worker entry, in compliance with OSHA confined space requirements.

Construction Sites

Ideal for ventilating enclosed work areas, trenches, and below-grade spaces on active construction projects where portability and quick deployment are essential.

Industrial Facilities

Used in manufacturing plants, distribution centers, and refineries to ventilate hoppers, silos, pipelines, and other enclosed process equipment during maintenance or inspection.

Exhaust Applications

The blower can be configured to exhaust air as well as supply it, making it versatile for removing fumes, dust, or stale air from work areas.

Tunnels and Pipelines

Suitable for short-distance ventilation of tunnels and pipelines where minimal ducting and bends are involved, leveraging the axial design's strength in high-airflow, lower-pressure scenarios.

Compatible Materials

• Standard flexible ducting (15 ft. included; 25 ft. option available)
• Separate 12" intake duct (not included) attachable to intake side of blower

Available Items

Product Documents

• Allegro Ventilation Blowers Linecard

Frequently Asked Questions

Q: Can this blower be used to exhaust air as well as supply it?
A: Yes. The 9532-15 can be configured to either ventilate (supply fresh air) or exhaust air from a confined space.

Q: Can I attach additional ducting to the intake side?
A: Yes. A separate 12" duct (not included) can be attached to the intake side of the blower to draw air from a more distant location.

Q: Is an international voltage version available?
A: Yes. The 9532-15E is wired for 220V AC/50 Hz for international use. Note that the E-version does not meet CSA C22.2 No. 113 requirements for Fans and Ventilators.

Q: What is the airflow performance with ducting bends?
A: With the included 15' ducting, the blower delivers 791 CFM free air, 703 CFM through one 90° bend, and 621 CFM through two 90° bends.

Q: Is this blower suitable for hazardous (explosive) environments?
A: No. The 9532-15 is a standard plastic axial blower rated for non-hazardous environments only. For hazardous locations, Allegro offers separate explosion-proof models such as the 9538 series.

Q: What is the recommended minimum setback distance when ventilating a manhole or tank?
A: Allegro recommends setting the blower back a minimum of five (5) feet from the opening when ventilating a manhole or tank, to prevent hazardous gases purged from the confined space from being drawn back into the blower intake.