MetroVac

Air Force Master Blaster MB-3CDSWB-30220 - Vacuum Cleaner MetroVac - Free user manual and instructions

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Product TypeCommercial-grade Blower/Vacuum
BrandMetroVac
ModelAir Force Master Blaster MB-3CDSWB-30220
Motor Power4.0 HP (peak)
Airflow240 CFM
Air SpeedUp to 80,000 feet per minute
Voltage110-120V AC
Amperage12 Amps
Weight12.5 lbs
Dimensions (LxWxH)14 x 13 x 11 inches
Filter TypeHEPA Exhaust Filter
Blower ModeYes, with two concentrator nozzles for drying
Vacuum ModeConverts to wet/dry vacuum (requires optional accessories)
Hose Length20 feet (power cord)
Cord TypeHeavy-duty grounded
ConstructionAll-steel housing with powder-coat finish
Noise LevelApprox. 80 dB
MaintenanceClean pre-filter monthly; replace HEPA annually
Safety CertificationsETL Listed
Country of OriginUSA
Warranty1 year limited

Frequently Asked Questions - Air Force Master Blaster MB-3CDSWB-30220 MetroVac

How do I switch between blower and vacuum modes?
To use as a blower, attach the concentrator nozzle. For vacuum mode, you need the optional vacuum kit that includes a hose and attachments. The motor is reversible; follow the manual to change mode.
What is the recommended filter maintenance?
Clean the pre-filter every month by tapping it out or washing with mild soap. Replace the HEPA filter annually or when it appears dirty. Always ensure the unit is unplugged before cleaning.
Can I use the Master Blaster for wet vacuuming?
Yes, but only with the optional wet-dry vacuum accessory kit. The unit itself is not waterproof, so avoid sucking up large amounts of liquid without the proper attachments. Drain and dry the filter after wet use.
What is the power consumption?
The MB-3CDSWB-30220 draws 12 amps at 110-120V, so it requires a dedicated 15-amp circuit. Do not use with extension cords over 50 feet.
Why does my blower have reduced airflow?
Check the pre-filter for clogs, ensure the nozzles are securely attached, and inspect the motor intake for debris. Also verify that the filter is clean and not saturated with water.
Is the Master Blaster safe for automotive paint?
Yes, the airflow is designed to be warm and gentle, not hot. It is safe for drying cars without damaging paint. However, do not hold the nozzle too close to a single spot.
What is the warranty period?
MetroVac offers a 1-year limited warranty against defects in materials and workmanship. Register your product online to activate.
Can I use a longer power cord?
The unit comes with a 20-foot cord. If you need more reach, use a heavy-duty extension cord of at least 14 AWG and no longer than 50 feet to avoid voltage drop.
How do I store the accessories?
The Master Blaster has a built-in accessory storage bracket on the back. The concentrator nozzle can be clipped onto the unit. Keep all parts dry and clean.
Where can I buy replacement filters?
Replacements are available directly from MetroVac or authorized dealers. Use only genuine MetroVac HEPA filters for optimal performance. Model numbers: M-700 (pre-filter) and M-710 (HEPA).

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Brand : MetroVac

Model : Air Force Master Blaster MB-3CDSWB-30220

Category : Vacuum Cleaner