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ALLEGRO 9904 Series Supplied Air Respirator Constant Flow - Allegro Partial SAR Assemblies
ALLEGROAllegro Partial SAR Assemblies

ALLEGRO 9904 Series Supplied Air Respirator Constant Flow

The Allegro 9904 Series Supplied Air Respirator Constant Flow (MPN 9920) is a general-purpose, half-mask partial SAR assembly with a silicone rubber seal. It operates at 12 psi using an OBAC fitting and an ambient…

SKU 3G-OTH-748812

Brand
ALLEGRO
Item
9904 Series Supplied Air Respirator Constant Flow
Part Number
9920
Category
Allegro Partial SAR Assemblies
Available to Order
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Technical specs
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Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Delivery
Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
Payment
Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
Ships to
Singapore

Compliance & shipping

Hazardous material
Not classified as hazardous
California Prop 65 warning
No warning recorded
Licence required
No licence required
Safety Data Sheet
Not available
Special shipping
Ships under standard freight

Technical Specifications

ALLEGRO
Manufacturer Part Number
9920
Series
9904
Type
OBAC, Ambient Air Pump, 12 psi, Half Mask, 9904
UNSPSC
46182004
Fittings
OBAC
For IDLH
No
Includes
Breathing Tube; Facepiece; Low Pressure Flow Adaptor; Support Belt
Standards
NIOSH Approved
Air Source
Ambient Air Pump
Application
General Purpose
System Type
SAR System
Catalog Page
N/A
Headgear Size
Universal
Headgear Type
Half Mask
Brand and Series
Allegro 9920
Country of Origin
USA (subject to change)
Headgear Material
Rubber (Suspension); Silicone Rubber (Seal)
Includes Headgear
Yes
Operating Pressure
12 psi
Includes Escape Bottle
No
Suspension Adjustment Type
Headband

Technical Documents

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ALLEGRO Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The Allegro 9904 Series Supplied Air Respirator Constant Flow (MPN 9920) is a general-purpose, half-mask partial SAR assembly with a silicone rubber seal. It operates at 12 psi using an OBAC fitting and an ambient air pump as its air source.

Frequently Asked Questions

What is the Allegro 9904 Supplied Air Respirator used for?

The Allegro 9904 Series Supplied Air Respirator Constant Flow (MPN 9920) is used for general-purpose respiratory protection in industrial environments. It delivers breathable air from an ambient air pump at 12 psi through a half-mask with a silicone rubber seal, suitable for painting, chemical handling, and grinding.

What are the specifications of the Allegro 9920 respirator?

The Allegro 9920 is a constant-flow supplied air respirator from the 9904 Series. It features a half-mask headgear with a silicone rubber seal, OBAC fittings, and operates at 12 psi using an ambient air pump. It is designed for general-purpose applications and is manufactured by Allegro.

Where to buy the Allegro 9920 supplied air respirator worldwide?

3G Electric supplies the Allegro 9920 supplied air respirator to customers worldwide. As a global industrial solutions provider, we handle full logistics, customs clearance, and delivery for this partial SAR assembly. Contact us to source the 9904 Series constant-flow respirator for your facility.

How to maintain the Allegro 9904 half-mask respirator?

To maintain the Allegro 9904 half-mask respirator, inspect the silicone rubber seal for cracks or wear before each use. Clean the mask with mild soap and water, and replace the seal if damaged. Ensure the ambient air pump and OBAC fittings are free of debris and operate at the specified 12 psi.

Used in

Common applications for ALLEGRO
Industrial hygiene monitoring — ALLEGRO lead cassettes (9804-14) for airborne lead sampling in manufacturing facilities.
Confined space ventilation — ALLEGRO axial blower (9548) for air movement in tanks or vaults during maintenance.
Temporary heating on construction sites — ALLEGRO portable electric heater (9401-50) for work tents in cold weather.
Sampling pump maintenance — ALLEGRO service kits (9804-40) for replacing vanes and filters in IAQ pumps.
Asbestos or particulate analysis — ALLEGRO TEM cassettes (9804-17) for electron microscopy sample collection.
HVACR system testing — ALLEGRO axial blower (9548) for ventilation testing in ductwork or equipment rooms.
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ALLEGRO Products

3G Electric supplies ALLEGRO allegro partial sar assemblies. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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