Cerumenolytic Agents; Cross Contamination / Backflow Prevention - Welch Allyn Ear Wash System Directions For Use Manual

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most severe cases cerumen can become 'impacted' in the deep
(bony) canal causing pain and temporary loss of hearing.

Cerumenolytic Agents

• Cerumenolytic agents are those agents designed specifically to
dissolve or soften cerumen.
• Most softening agents, particularly over-the-counter products
contain carbamide peroxide which is the only agent the FDA
considers safe for loosening or softening cerumen.
• In some instances, it is necessary to soften cerumen prior to
removal or instead of removal.

Cross Contamination / Backflow Prevention

• At the time of this printing, ear wax (cerumen) is not considered
a biohazard. However individual municipalities may place a higher
level of concern where water is sucked back into the line (from
the Ear Wash) when a negative line pressure condition exists.
You can order a back flow prevention adapter that meets all
current national and international requirements by calling Welch
Allyn or obtaining one from your local hardware store (watts
model 8C). To determine if this type of device is necessary,
contact your local water authority.
Welch Allyn Ear Wash System