This article covers the care and cleaning of the whole body plethysmograph chambers. For more information on this product, please review the FinePointe WBP Application Manual.
Cleaning the Chamber
Clean animal chamber of debris as needed by wiping with a cloth or rinsing with warm water. For a more thorough cleaning, use warm water and a mild dish detergent. It is best to let the chambers thoroughly air dry. Be certain that no water remains in any bias flow ports or tubing. If required, dry with a cloth towel.
- DO NOT submerge the chamber as this will affect pneumotach screens and the reference chamber.
- DO NOT USE WINDEX or window cleaner to clean the plethysmograph. Continued use of Windex will eventually crack the lucite material.
- DO NOT put the chamber in the dishwasher.
- DO NOT use alcohol-based cleansers.
Cleaning the Nebulizer Head
Clean the nebulizing equipment after each use. To clean the nebulizer head, remove it from the plethysmograph or aerosol block and rinse it in warm, soapy water. Let it soak for a few minutes. It can be submerged.
DO NOT use a high-pressure water stream; let it run gently into the device.
DO NOT touch the metal membrane or attempt to brush it, as this may cause damage, but do rinse it from both the top and the bottom
DO NOT clean the head with alcohol. Alcohol will damage the metal membrane. It is best to use soapy water for all general cleaning.
CORRECT DRYING POSITION
To dry, shake off the excess water and wipe gently with a paper towel or Kimwipes®.
Set the head on its SIDE in a dry place.
INCORRECT DRYING POSITION
Do NOT stand the head up or place it in any inline circuit while not in use.
Trapped humidity may cause the metal membrane to discolor.
If you have a stubborn protein build up on the head, you may try Efferdent. Dissolve a tablet in a glass of water. Then filter the resulting solution with a simple syringe filter. Nebulize it for 10 minutes. Rinse thoroughly and air dry. You may pat gently with paper towels.
If you have been using a pathogen and wish to decontaminate, simply disconnect the head for the power cord, then autoclave it, using the “flash” steam sterilization cycle, 134C for 4 minutes.
- To avoid mechanical or electrical damage, do not drop the nebulizer head or the control module.
- Do not use in the presence of devices generating high electromagnetic fields such as magnetic resonance imaging (MRI) equipment.
- Disconnect the nebulizer head from control module before cleaning.
- Do not immerse or autoclave the nebulizer control unit.
- Use only with components specified by Aerogen.
- Inspect all parts before use, and do not use if any parts are missing, cracked or damaged. In case of missing parts, malfunction or damage, contact your DSI representative.
- Do not use or store outside of specified environmental conditions.
The following products have not been tested specifically at DSI, but have been recommended by DSI customers which appears to be compatible with the acrylic used in manufacturing the WBP chambers, may be used for disinfecting the chambers when used in a BSL-3 or BSL-4 facility:
- Cetylcide II Concentrate, recommended by current customers
- Rescue Disinfectants
- A dilute bleach (5-6% sodium hypochlorite) per CDC guidelines
- Hydrogen Peroxide - We have not done formal testing on this, but have used 0.5% H2O2 wipes and have not seen a problem. Low concentration (<3%) should not cause issues.