Ventilation blowers, ducting and confined-space safety equipment for demanding workplaces.

Allegro Safety Equipment & Confined Space Ventilation

Browse Allegro safety products from Keyline Safety for confined-space ventilation, air movement and workplace access applications. Shop ventilation blowers, ducting, fan systems, manhole products and related equipment for industrial, utility, maintenance and jobsite teams.

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Showing 25–48 of 59 products

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Allegro·SKU: 9538
Allegro 8″ Axial Explosion-Proof (EX) Plastic Blower

Keyline Safety lists Allegro 8″ Axial Explosion-Proof (EX) Plastic Blower in our Allegro Safety Products selection.This lightweight-, corrosion-, UV- and chemical-resistant polyethylene housing offers a superior design with durable construction. This compac...

$5,852.31
Allegro·SKU: 9535-12L
Allegro 12" AC Air Bag with 25’ Ducting, 41 lbs.

This Allegro 12" AC Air Bag with 25’ Ducting, 41 lbs. is included in the Allegro Safety Products collection from Keyline Safety.12" metal blower system with ducting built into a heavy duty polyester bag for an all-in-one unit for ease of operation. Designed...

$2,452.31
Allegro·SKU: 9535-12
Allegro 12" AC Air Bag with 15’ Ducting, 35 lbs.

Keyline Safety lists Allegro 12" AC Air Bag with 15’ Ducting, 35 lbs. in our Allegro Safety Products selection.12" metal blower system with ducting built into a heavy duty polyester bag for an all-in-one unit for ease of operation. Designed with zippered en...

$2,206.15
Allegro·SKU: 9525
Allegro 20″ Axial AC Standard Metal Blower

Allegro 20″ Axial AC Standard Metal Blower is part of Keyline Safety’s Allegro Safety Products collection.Designed for applications requiring a maximum amount of output. Housing is made from 16-gauge cold rolled steel and powder-coated in a "safety orange" ...

$5,396.92
Allegro·SKU: 9518-24
Allegro 24" Jet Fan (11 3/4" x 32 3/4" diameter)

Keyline Safety lists Allegro 24" Jet Fan (11 3/4" x 32 3/4" diameter) in our Allegro Safety Products selection.This heavy-duty aluminum fan can be used as a blower or exhaust by simply reverse mounting. Compressed air is pushed through a nozzle at the end o...

$22,861.54
Allegro·SKU: 9518-20
Allegro 20" Jet Fan (9 7/8" x 24 3/4" diameter)

Allegro 20" Jet Fan (9 7/8" x 24 3/4" diameter) is part of Keyline Safety’s Allegro Safety Products collection.This heavy-duty aluminum fan can be used as a blower or exhaust by simply reverse mounting. Compressed air is pushed through a nozzle at the end o...

$13,964.62
Allegro·SKU: 9518-10
Allegro Extra Large Metal Venturi Blower

Keyline Safety lists Allegro Extra Large Metal Venturi Blower in our Allegro Safety Products selection.Compressed air or saturated steam is the power source for our Venturi Blower line. Small volumes of high velocity air (from the compressed air source) run...

$3,001.54
Allegro·SKU: 9518-06
Allegro Medium Metal Venturi Blower

This Allegro Medium Metal Venturi Blower is included in the Allegro Safety Products collection from Keyline Safety.Compressed air or saturated steam is the power source for our Venturi Blower line. Small volumes of high velocity air (from the compressed air...

$1,670.77
Allegro·SKU: 9516
Allegro 16″ Axial AC High Output Metal Blower

Allegro 16″ Axial AC High Output Metal Blower is part of Keyline Safety’s Allegro Safety Products collection.Designed for applications requiring a maximum amount of output. Our 16" High Output Blower offers a 2 hp electric motor housed in a rugged metal cas...

$6,850.77
Allegro·SKU: 9402-88
Allegro Deluxe Work Tent (8'd x 8'w x 7' 1/2"h, 2 doors)

This Allegro Deluxe Work Tent (8'd x 8'w x 7' 1/2"h, 2 doors) is included in the Allegro Safety Products collection from Keyline Safety.Easy to use and very durable, our flame retardant Deluxe Work Tent features quick set-up from the inside or outside with ...

$6,716.92
Allegro·SKU: 9401-50
Allegro Tent Heater (115 CFM, 1500 Watts of 5000 BTU)

Allegro Tent Heater (115 CFM, 1500 Watts of 5000 BTU) is part of Keyline Safety’s Allegro Safety Products collection.The lightweight Tent Heater offers the rugged, heavy duty design of all steel housing with enclosed heating elements and a sealed motor. Thi...

$1,856.92
Allegro·SKU: 9401-20
Allegro Manhole Lid Lifter (42″ long, 9 lbs.)

Allegro Manhole Lid Lifter (42″ long, 9 lbs.) is part of Keyline Safety’s Allegro Safety Products collection.The toughest manhole covers are easy to move with this one piece lifter. It features a long all-steel handle that provides the leverage necessary to...

$773.85
Allegro·SKU: 9401-05
Allegro Manhole Guard Rail (42"l x 42"w x 42 1/4"h, 45 lbs.)

This Allegro Manhole Guard Rail (42"l x 42"w x 42 1/4"h, 45 lbs.) is included in the Allegro Safety Products collection from Keyline Safety.Our Manhole Guard Rail* is constructed of strong, one inch tubular .078 gauge steel that is powder-coated in safety y...

$1,429.23
Allegro·SKU: 9401
Allegro Manhole Guard Rail (33"l x 33"w x 42 1/4"h, 34 lbs.)

This Allegro Manhole Guard Rail (33"l x 33"w x 42 1/4"h, 34 lbs.) is included in the Allegro Safety Products collection from Keyline Safety.Our Manhole Guard Rail* is constructed of strong, one inch tubular .078 gauge steel that is powder-coated in safety y...

$1,218.46
Allegro·SKU: 9230-02
Allegro 2-Worker Tyvek Hood System with two 100' Hoses

Allegro 2-Worker Tyvek Hood System with two 100' Hoses is included in Keyline Safety’s Supplied Air Respirators and Systems selection and our Respiratory Protection and Respirators range.In areas such as painting or asbestos abatement, where levels of conta...

$12,598.46
Allegro·SKU: 9220-02
Allegro 2-Worker Tyvek Hood System with two 50' Hoses

Allegro 2-Worker Tyvek Hood System with two 50' Hoses is included in Keyline Safety’s Supplied Air Respirators and Systems selection and our Respiratory Protection and Respirators range.In areas such as painting or asbestos abatement, where levels of contam...

$11,469.23
Allegro·SKU: 9200-02
Allegro 2-Worker Full Mask System with two 50' Hoses

Allegro 2-Worker Full Mask System with two 50' Hoses is included in Keyline Safety’s Supplied Air Respirators and Systems selection and our Respiratory Protection and Respirators range.Our Full Mask Systems provide a portable air source for one, two or thre...

ANSI Z87.1
$11,912.31
Allegro·SKU: 9200-01
Allegro 1-Worker Full Mask System with 50' Hose

Allegro 1-Worker Full Mask System with 50' Hose is included in Keyline Safety’s Supplied Air Respirators and Systems selection and our Respiratory Protection and Respirators range.Our Full Mask Systems provide a portable air source for one, two or three res...

ANSI Z87.1
$5,113.85
Allegro·SKU: 9101-25B
Allegro HP 25' SAR HOSE, 3/8" W/HANSEN COUPLER

Allegro HP 25' SAR HOSE, 3/8" W/HANSEN COUPLER is included in Keyline Safety’s Supplied Air Respirators and Systems selection and our Respiratory Protection and Respirators range.Specifications SKU: 9101-25B UPC: 741851863430 Brand: ALLEGRO Category: PPE &g...

$472.31
Allegro·SKU: 9101-100B
Allegro HP 100' SAR HOSE, 3/8" W/HANSEN COUPLER

Allegro HP 100' SAR HOSE, 3/8" W/HANSEN COUPLER is included in Keyline Safety’s Supplied Air Respirators and Systems selection and our Respiratory Protection and Respirators range.Specifications SKU: 9101-100B UPC: 741851350268 Brand: ALLEGRO Category: PPE ...

$1,213.85

Showing 25–48 of 59 products

Allegro Ventilation

Confined Space Ventilation & Air Movement

Allegro offers ventilation equipment for moving air through confined spaces and other work areas where planned air movement is required. Its blower lineup includes axial, centrifugal, pneumatic, and Venturi options, along with ducting and related accessories.

Select ventilation equipment around the space, airflow requirements, duct layout, power source, environmental conditions, and the procedures established for the work.

System Selection

Choose the Blower, Ducting & Accessories as a System

A ventilation setup is more than the blower alone. Duct diameter, duct length, bends, connection points, available power, portability, and the amount of air that needs to be moved can all affect system selection.

Allegro provides individual blowers as well as complete ventilation-system configurations that can include ducting and Manhole Ventilation Passthru components. Confirm compatibility and performance from the specifications for the exact model being considered.

Confined Space Equipment

Support Confined Space Work Beyond Ventilation

Confined-space work often needs more than ventilation. Alongside Allegro blowers, ducting, manhole products, shelters, pumps, and related equipment, many programs also include gas monitoring and detection equipment and confined-space rescue and descent equipment selected for the site's hazards and procedures.

Build the equipment list around the entry plan, ventilation requirements, atmospheric testing, communications, rescue arrangements, and the manufacturer's instructions for each product.

Business & Project Orders

Need Allegro Equipment for a Project or Facility?

Keyline Safety can help businesses organize Allegro equipment and accessories for facilities, projects, maintenance programs, utility work, and recurring purchasing needs.

For larger orders, provide the application, equipment type, approximate quantities, power-source requirements, ducting needs, and any known Allegro model or part numbers so the order can be reviewed more efficiently.

Frequently Asked Questions

What Allegro products does Keyline Safety carry?

Keyline Safety’s Allegro range focuses on ventilation blowers, ducting, fans, confined-space and manhole products, plus related workplace accessories. Availability varies by product and application.

How do I choose an Allegro blower and ducting for a confined space?

Blower and ducting selection depends on the space and air volume, required airflow, duct diameter and length, bends, power source, and the work environment. Use the exact Allegro model specifications and workplace procedures.

For confined-space programs, ventilation is only one part of the plan; also review appropriate gas monitoring and detection equipment and rescue equipment where required.

What types of ventilation blowers does Allegro offer?

Allegro’s blower range includes axial, centrifugal, pneumatic, and Venturi options, along with ducting and accessories. The best choice depends on the application, required airflow, power source, duct configuration, and site conditions.

Can Allegro blowers be used with ducting and Manhole Ventilation Passthru equipment?

Many Allegro ventilation systems are designed around compatible blowers, ducting, and Manhole Ventilation Passthru components, and some complete systems bundle these items together. Confirm the exact blower, duct diameter, and accessory compatibility before ordering.

Can Keyline Safety help with larger Allegro equipment orders?

Yes. Keyline Safety can help businesses organize Allegro equipment and accessories for projects, facilities, maintenance programs, and recurring purchasing needs. Providing the application, quantities, and known part numbers can help streamline the review.

Keyline Safety supplies Allegro safety equipment for businesses and industrial teams that need dependable ventilation, air movement, and confined-space support.

Allegro manufactures ventilation blowers, ducting, confined-space products, fans, respiratory equipment, seasonal climate-control products, and related workplace safety solutions. Always select and use equipment according to the specific work environment, workplace procedures, and manufacturer instructions.

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