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Clean Air fume extraction MIG gun with straight handle and optional short nozzle shroud Clean Air fume extraction MIG gun with new black neck Coiled Straight handle Clean Air fume extraction MIG gun

Clean Air™ Fume Extraction MIG Guns

Reduce fume at the source with an industrial-duty fume extraction MIG gun. 

The Bernard® Clean Air™ fume extraction MIG gun is a source capture solution that helps to provide a cleaner, compliant work environment.  

Completely redesigned to closely match the weight, handle size, durability and industrial grade performance of Bernard BTB semi-automatic air-cooled MIG guns, this fume extraction gun was built with welder comfort and productivity in mind.

Configure My Gun Reverse Lookup

  • Small size of vacuum chamber provides good joint access and visibility
  • Vacuum hose swivel on rear of handle improves flexibility and reduces wrist fatigue
  • Crush and snag resistant vacuum hose which is durable enough to eliminate the need for a bulky vacuum hose cover
  • Vacuum chamber on front adjusts to one of four positions to optimize fume capture, gas flow and weld access
  • Ideal fume extraction solution for large weldment and confined space welding applications
  • Suitable for use with solid and flux-cored wires
  • Compatible with vacuum systems from most major manufacturers

Processes

  • MIG (GMAW) welding

Duty Cycle Ratings

  • 300 amp model – 60%: 300 amp with mixed gases
  • 400 amp model – 60%: 400 amp with mixed gases
  • 500 amp model – 60%: 500 amp with mixed gases

Specifications

  • Available in 300, 400, and 500 amp models
  • Necks available in 45- and 60-degree angles for maximum feeding characteristics
  • Suitable for use with solid and flux-cored wires
  • Compatible with vacuum systems from most major manufacturers

Customize your Clean Air™ fume extraction MIG gun online

Configure the Bernard Clean Air fume extraction MIG gun gun part number you need, or reverse lookup your existing gun part number – plus get access to additional resources and an expanded replacement parts list with diagram.

This new mobile-friendly online configurator provides downloadable exploded view diagrams and other valuable takeaways that you can print, save for later, or share via email.

Check it out today!

Part Numbers

Consumables Systems

For use with Front Load Liners

Part NumberDescription
D-A1Large, brass, thread-on
D-A2Large, brass, slip-on
DS-A1Small, brass, thread-on
DS-A2Small, brass, slip-on

For use with Bernard® Rear Load Liners

Part NumberDescription
D-A1Large, brass, thread-on
D-A2Large, brass, slip-on
DS-A1Small, brass, thread-on
DS-A2Small, brass, slip-on
Part NumberDescription
T-A035CHfor 0.035″ (0.9 mm) wire
T-A045CHfor 0.045″ (1.2 mm) wire
T-A062CHfor 0.052″ (1.3 mm) wire
T-A062CHfor 1/16″ (1.6 mm) wire

Large Nozzles

Part NumberDescription
N-A3400C3/4″ bore; flush, copper
N-A3414C3/4″ bore; flush, copper
N-A3418C3/4″ bore; 1/8″ recess, copper
N-A3414B3/4″ bore; 1/4″ recess, brass
N-A3418B3/4″ bore; 1/4″ recess, brass
N-A3418B3/4″ bore; 1/4″ recess, brass
N-A5800C5/8″ bore; flush, copper
N-A5814C5/8″ bore; 1/8″ recess, copper
N-A5818C5/8″ bore; 1/8″ recess, copper
N-A5814B5/8″ bore; 1/4″ recess, brass
N-A5818B5/8″ bore; 1/8″ recess, brass

Small Nozzles

Part NumberDescription
NS-A5800C3/4″ bore; flush, copper
NS-A5818C3/4″ bore; flush, copper
NS-A5800B3/4″ bore; 1/8″ recess, copper
NS-A5818B3/4″ bore; 1/4″ recess, brass
NS-A1200B3/4″ bore; 1/4″ recess, brass
NS-A1218B3/4″ bore; 1/4″ recess, brass
NS-A1218C1/2″ bore; 1/8″ recess, copper
NST-A3800B3/8″ bore; flush, brass
NST-A38818B3/8″ bore; 1/8″ recess, brass
NST-A38XTB3/8″ bore; 1/8″ ext., brass
NST-A1218B1/2″ bore; 1/8″ recess, brass
Part NumberDescription
1390185Standard shroud, long
1390189Short shroud (not configurable; must be purchased separately)
Part NumberDescription
DS-1*Small, brass
D-1Large, brass

*For 300 Amp Only

Part NumberDescription
T-023for 0.023″ (0.6 mm) wire
T-030for 0.030″ (0.8 mm) wire
T-035for 0.035″ (0.9 mm) wire
T-039for 0.039″ (1.0 mm) wire
T-045for 0.045″ (1.2 mm) wire
T-052for 0.052″ (1.4 mm) wire
T-062for 1/16″ (1.6 mm) wire
T-072for 0.072″ (1.8 mm) wire
T-078for 5/64″ (2.0 mm) wire
T-094for 3/32″ (2.4 mm) wire
Part NumberDescription
N-3414C3/4″ bore; 1/4″ recess, copper
N-5814C5/8” Bore, 1/4” recess, copper
N-5818C5/8” bore, 1/8” recess, copper
NS-1218B*1/2” bore, 1/8” recess, brass
NS-1218C*1/2” bore, 1/8” recess, copper
NS-5818C*5/8” bore, 1/8” recess, copper

*For 300 Amp Only

Part NumberDescription
1390132*Standard shroud, long
1390134Standard shroud, long
1390142Short shroud (not configurable; must be purchased separately)

*For 300 Amp Only

Part NumberDescription
403-20-30for 0.030″ (0.8 mm) wire
403-20-35for 0.035″ (0.9 mm) wire
403-20-1.0for 0.040″ (1.0 mm) wire
403-20-45for 0.045″ (1.2 mm) wire
403-20-364for 3/64″ (1.2 mm) wire
403-20-52for 0.052″ (1.4 mm) wire
403-20-1.4for 0.055″ (1.4 mm) wire
403-20-116for 1/16″ (1.6 mm) wire
403-20-1.8for 0.070″ (1.8 mm) wire
403-20-78for 0.078″ (2.0 mm) wire
403-20-564for 5/64″ (2.0 mm) wire
Part NumberDescription
402-6-625/8” Bore, 1/8” recess, copper
401-5-723/4” Bore, 1/4” recess, copper

Retaining Head

Part NumberDescription
404-44Brass
Part NumberDescription
1390135Standard shroud, long
1390142Short shroud (not configurable; must be purchased separately)

MIG Gun Liners

Important: Front load liners are a critical component of the complete AccuLock S consumables system, and can only be used with AccuLock contact tips, diffusers, nozzles, neck insulators, power pins and power pin caps specific to the system.

>> See Front Load Liner part numbers

Part NumberDescription
L2A-15for 0.030″ – 0.035″ wire; 15 ft length
L2A-25for 0.030″ – 0.035″ wire; 25 ft length
L3A-10for 0.035″ – 0.045″ wire; 10 ft length
L3A-15for 0.035″ – 0.045″ wire; 15 ft length
L3A-25for 0.035″ – 0.045″ wire; 25 ft length
L4A-10for 0.045″ – 1/16″ wire; 10 ft length
L4A-15for 0.045″ – 1/16″ wire; 15 ft length
L4A-25for 0.045″ – 1/16″ wire; 25 ft length
L6A-15for 5/64″ wire; 15 ft length
L7A-15for 3/32″ wire; 15 ft length
L7A-25for 3/32″ wire; 25 ft length

Documentation

Consumables

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As manufacturers of semi-automatic, fixed automatic and robotic MIG guns and consumables, Tregaskiss and Bernard have earned a reputation as an experienced, dependable partner to its customers in the automotive, construction and fabrication, heavy equipment, ship, rail, general manufacturing, commercial truck and trailer, and oil and gas industries. Tregaskiss and Bernard offer air-cooled semi-automatic, fixed automatic and robotic MIG guns, water-cooled semi-automatic, fixed automatic and robotic MIG guns, reamers, nozzle cleaning stations, anti-spatter liquid, wire cutters, anti-spatter sprayers, clutches, welding consumables, nozzles, MIG welding tips, and MIG welding torches.