1. Product Overview
The METROVAC MB-3 Air Force Blaster Pet Dryer is a powerful and efficient grooming tool designed for professional and home use. It features twin fan motors delivering substantial airflow for quick and safe pet drying. This unit is engineered for durability and ease of use, providing a heater-free drying experience to prevent discomfort or coat damage.
Key Features:
- Efficient Drying Technology: Utilizes advanced drying technology for quick and effective pet drying.
- Compact and Lightweight Design: Offers optimum power and durability in a portable package, making it easy to handle.
- Heater-Free Operation: Ensures safe drying without heat, preventing discomfort or potential damage to the pet's coat.
- High Air Volume: Delivers 229 CFM / 58500 FPM air volume for efficient drying, reducing grooming time.
- Convenient Grooming: Includes a 12-foot grounded 3-conductor power cord, 2280 Watts power, and various nozzles (Large Blower Nozzle, Crevice Tool, Air Flare, & Adapter) for versatile use.

2. Setup
Before operating your METROVAC MB-3 Air Force Blaster Pet Dryer, ensure all components are properly connected and secured.
Assembly:
- Attach the Hose: Securely twist the flexible hose onto the air outlet port of the main dryer unit. Ensure a tight fit to prevent air leakage.
- Select a Nozzle: Choose the appropriate nozzle for your grooming task. The dryer comes with various nozzles designed for different applications (e.g., wide for general drying, narrow for concentrated airflow). Attach the selected nozzle to the end of the hose.
- Position the Dryer: Place the dryer on a stable, flat surface. The unit is equipped with wheels for easy maneuverability.
- Power Connection: Plug the 12-foot grounded 3-conductor power cord into a suitable 120V electrical outlet.

3. Operating Instructions
The METROVAC MB-3 offers two-speed control for versatile drying. Always ensure the pet is comfortable and accustomed to the dryer's sound before full operation.
Powering On and Speed Control:
- Initial Power On: Locate the power switches on the unit. The MB-3 features two independent switches, each controlling a 4.0 Peak HP motor.
- Low Speed: Flip one switch to the "ON" position to activate a single motor for lower airflow and reduced noise, suitable for sensitive pets or initial drying.
- High Speed: For maximum power and faster drying, flip both switches to the "ON" position to engage both motors, providing 8.0 Peak HP.
- Drying Technique: Hold the nozzle a safe distance from the pet's skin and coat. Use a sweeping motion to direct airflow, working from the head towards the tail. Pay attention to dense areas of fur.
- Safety Note: The dryer operates without a heating element to protect the pet's skin and coat from excessive heat. The air may warm slightly due to motor operation, but it remains safe.


4. Maintenance
Regular maintenance ensures optimal performance and longevity of your METROVAC MB-3 Pet Dryer.
Cleaning and Filter Care:
- Filter Type: The dryer uses a foam filter.
- Filter Cleaning: Periodically check and clean the foam filter to prevent airflow obstruction. Remove the filter, gently tap out loose debris, and if necessary, wash it with mild soap and water. Ensure the filter is completely dry before reinserting.
- Exterior Cleaning: Wipe down the exterior of the unit with a damp cloth. Do not use harsh chemicals or abrasive cleaners.
- Hose and Nozzle Care: Clean the hose and nozzles as needed to remove any accumulated pet hair or debris.
5. Troubleshooting
If you encounter issues with your METROVAC MB-3, refer to the following common troubleshooting steps:
- No Power:
- Ensure the power cord is securely plugged into a functional 120V outlet.
- Check if the power switches on the unit are in the "ON" position.
- Verify the circuit breaker for the outlet has not tripped.
- Reduced Airflow:
- Inspect the foam filter for clogs and clean it if necessary (refer to Maintenance section).
- Check the hose and nozzles for any blockages or kinks.
- Ensure both motors are engaged for maximum airflow.
- Unusual Noise:
- Turn off the unit and inspect the air intake and exhaust for any foreign objects.
- Ensure the unit is on a stable surface and not vibrating against other objects.
If problems persist after following these steps, please contact METROVAC customer support for further assistance.
6. Specifications
| Feature | Detail |
|---|---|
| Brand | METROVAC |
| Model Name | Air Force Master Blaster (MB-3) |
| Item Model Number | AF44511 17 |
| Special Feature | Lightweight, Portable |
| Filter Type | Foam |
| Included Components | Nozzle |
| Is Cordless? | No |
| Capacity | 4 Gallons |
| Wattage | 2280 Watts |
| Air Volume | 229 CFM / 58500 FPM |
| Hose Length | 10 Feet |
| Form Factor | Handheld |
| Color | Black |
| Noise Level | 75 Decibels |
| Amperage | 18 Amps |
| Motor Horsepower | 8.0 Peak HP (Twin 4.0 Peak HP Motors) |
| Control Method | Touch |
| Number of Speeds | 2 |
| Portable | Yes |
| Indoor/Outdoor Usage | Indoor |
| Item Weight | 23 pounds |
| Product Dimensions | 27.5 x 15.5 x 9.5 inches |
| Material | Steel |
7. Warranty and Support
METROVAC stands behind the quality of its products. The MB-3 Air Force Blaster Pet Dryer comes with a comprehensive warranty.
Warranty Information:
- 5-Year Warranty: The product is covered by a 5-year warranty for the machine and motor.
- Exclusions: The warranty does not cover carbon brushes, wear and tear, filters, maintenance, physical/water damage, improper connections, or mechanical alterations.

Customer Support:
For any questions, technical assistance, or warranty claims, please contact METROVAC customer support through their official website or the contact information provided in your product packaging.