DeVilbiss T-Piece Permanent Nebulizer Combo with 7 ft Tubing, 5 cc capacity

SKU: DV646

Regular price $50.68 | Save $-50.68 (Liquid error (sections/product-template line 227): divided by 0% off)

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The Model 646 Nebulizer converts liquid into aerosol via high velocity, compressed air stream. Used in conjunction with a DeVilbiss brand compressor, it delivers consistent aerosol particles to the lungs of COPD patients.

Features and Benefits

  • Designed for comfortable administration of fine mists of uniform density to reach deep into the lung cavity
  • Unique "T" piece design allows the patient to leave the nebulizer in the mouth while exhaling
  • Can be hand-operated or compressed air driven with a DeVilbiss brand compressor
  • Break-resistant nebulizer that easily disassembles for sterilization using methods such as autoclaving, boiling, or cold sterilization
  • MMAD (Mass Median Aerodynamic Diameter) of 5 microns, ensuring efficient delivery of medication
  • 5 cc capacity for holding medication
  • Comes complete with tubing, activator valve, mouthpiece, and extra jet for convenience
  • Nebulization Time (3ml) of 0-2/75 - 0.4 ml/minute for efficient and effective treatment
  • MMAD (Mass Median Aerodynamic Diameter) of 3 to 5 microns for optimal medication delivery
  • Maximum Fill Volume of 5 mL for holding an adequate amount of medication
  • Unit Construction made of Lexan® Plastic for durability and can be cleaned using autoclaving or boiling


  • Capacity: 5 cc
  • Dimensions: 3" x 1.5" x 2-3/4" (H x W x D)
  • Weight: 1 oz
  • MMAD: 3 to 5 microns
  • Maximum Fill Volume: 5 mL
  • Unit Construction: Lexan® Plastic
  • Manufacturer: DeVilbiss
  • MPN: 646

How to Fill Drive 646 Nebulizer?

  • Remove port cap and position nebulizer aerosol port in an upward position.
  • Fill nebulizer through the main aerosol port with a prescribed amount of medication.
  • The nebulizer is designed with a no-spill internal rim to prevent the medication from accidentally spilling.
  • Do not fill above o-ring at the base of medication reservoir. Overfilling may cause nebulizer to leak.

How to use Drive 646 Nebulizer?

  • It is important to be in a comfortable upright position during the treatment.
  • Fill nebulizer as previously instructed. Attach mouthpiece to T-piece.
    • Note: The Model 646 nebulizer includes a mouthpiece specifically designed for use with this model. It is not compatible with other sizes of mouthpieces.
  • Attach nebulizer tubing to a mechanical compressor such as the DeVilbiss 5650, 4650, or 3655 series compressors. If compressed air or oxygen is used, set regulator to permit 5-7 lbs. pressure or a flow of 6-8 liters per minute.
  • To attain maximum aerosol output, remove air vent cap from side vent of the nebulizer.
  • Turn on an air compressor. Aerosol will not flow until thumb-valve is closed as described below.
  • Position mouthpiece between teeth. Place finger over thumb-valve. As aerosol begins to flow, inhale deeply. At the end of the inhalation, remove finger from thumb-valve and hold breath for two seconds.
  • Remove nebulizer from mouth and exhale slowly.
  • This procedure should be repeated until all prescribed medication is nebulized.
    • Note: Blow through T-piece Model 646 nebulizer is designed to remain in the mouth during exhalation if desired.
  • The nebulizer may be used without a mouthpiece.
  • Position nebulizer aerosol port in mouth so that aerosol avoids teeth and tongue. Follow same administration procedure as described above.

How to clean Drive Model 646 Nebulizer?

  • Remove nebulizer tubing from compressor and nebulizer. Remove mask or mouthpiece.
  • Unscrew upper half of nebulizer from the lower half and rinse all parts under hot tap water after every use.
  • Daily, wash nebulizer, jet, mouthpiece, thumb-valve in hot, soapy water. If jet is clogged, use cleaning wire (not shown).
  • Rinse with hot tap water for 30 seconds, then soak in one part white vinegar (>=5% acetic acid concentration) to three parts hot water (131ºF-149ºF/55ºC - 65ºC) for 30 minutes. Rinse with hot tap water and air dry. Replace or clean tubing monthly by following nebulizer cleaning instructions.
  • To remove excess water from tubing, attach to compressor or air source and allow air to pass through tubing until excess moisture is removed.
  • A nebulizer is constructed of latex-free polycarbonate that, with the exception of the mouthpiece and o-ring, will withstand sterilization by autoclaving (@ 273ºF for 15 minutes) or boiling. It may also be sterilized with any suitable germicidal agent.
  • Always prepare a fresh solution for each cleaning cycle.
  • To avoid possible contamination, the nebulizer should be stored with port and vent caps in place until next treatment.

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DeVilbiss T-Piece Permanent Nebulizer Combo with 7 ft Tubing, 5 cc capacity

DeVilbiss T-Piece Permanent Nebulizer Combo with 7 ft Tubing, 5 cc capacity

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