Etymotic HD•Safety™ Earplugs + Earphones - Manual (Page 8)

7
Visually inspect your eartips before each use for signs of
discoloration (soiling) and note any changes in flexibility.
Eartips that display any of these signs or other significant wear
should be replaced. 3-flange eartips should be replaced every
3 to 6 months with average use. For heavy use (8-16 hours/daily)
they may need replacement in 3-6 weeks.
Foam eartips typically need to be changed more frequently than
3-flange eartips. Individual experience will vary, depending on
total use time and environmental conditions.
• Examine eartips after each use.
• Do not immerse earphones in water.
• Do not clean with harsh chemicals. Alcohol is not recommended.
• 3-flange eartips can be removed and cleaned in mild detergent
before reattaching. Dry eartips thoroughly before reattaching.
• Do not expose to extreme heat or moisture.
• Avoid dropping or hitting on a hard surface.
• Use only accessories from Etymotic Research, Inc. to ensure
continued performance to specification.
Maintenance