MODEL 646
Your DeVilbiss nebulizer is designed to produce a dense high-quality aerosol for administration of your prescribed medication.
When cared for properly, your nebulizer should give years of dependable service. Please read carefully the following instruc-
tions before placing your DeVilbiss nebulizer in operation.
TO FILL
1. Remove port cap and position nebulizer aerosol port in an upward position.
2. Fill nebulizer through main aerosol port with prescribed amount of medication.
3. The nebulizer is designed with a no-spill internal rim to prevent medication from
accidentally spilling. Do not fill above o-ring at the base of medication reservoir.
Overfilling may cause nebulizer to leak.
TO USE
1. It is important to be in a comfortable upright position during your treatment.
2. 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.
3. Attach nebulizer tubing to a mechanical compressor such as the DeVilbiss 5650, 4650,
3650, 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.
4. To attain maximum aerosol output, remove air vent cap from side vent of nebulizer.
5. Turn on air compressor. Aerosol will not flow until thumb-valve is closed as described
below.
6. 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.
7. Remove nebulizer from mouth and exhale slowly. This procedure should be repeated until all prescribed medication is neb-
ulized. Blow through T-piece Model 646 nebulizer is designed to remain in the mouth during exhalation if desired.
8. Nebulizer may be used without mouthpiece. Position nebulizer aerosol port in mouth so that aerosol avoids teeth and
tongue. Follow same administration procedure as described above.
TO CLEAN
1. Remove nebulizer tubing from compressor and nebulizer. Remove mask or mouthpiece.
2. Unscrew upper half of nebulizer from lower half and rinse all parts under hot tap water after every use.
3. 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 to three parts hot water 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.
4. Your nebulizer is constructed of latex-free Lexan® that, with the exception of the mouthpiece, will withstand sterilization
by autoclaving or boiling. It may also be sterilized with any suitable germicidal agent. Always prepare fresh solution for
each cleaning cycle.
5. To avoid possible contamination, your nebulizer should be stored with port and vent caps in place until your next treat-
ment.
®Lexan is a registered trademark of G.E. Plastics.
9
T-Piece
Port Cap
Vent Cap
Jet
Tubing
Mouthpiece
Medicine
Reservoir
Thumb-valve
N e b u l i z e r s
