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4
Table 2: Option 2 (Manual Cleaning and High-Level Chemical Disinfection)
Option 2 (Manual Cleaning and High-Level Chemical Disinfection)
Disassembly Disassemble the humidifier water chamber according to the “Disassembling and Reassembling”
instructions on page 5.
Pre-cleaning Rinse all water chamber components 10 times and brush thoroughly with a soft bristle brush in a
warm (113°F or 45°C) solution of Alconox (1%).
Note: Pre-cleaning must occur immediately after use.
Cleaning 1. Clean all components of the water chamber with a soft bristle brush for one minute while
soaking them in the detergent
1
solution. Pay particular attention to all crevices and cavities.
2. Thoroughly rinse each component according to the manufacturer’s instructions.
1 Cleaning: ResMed has tested the detergent Alconox (diluted at 1%) using hot water (approximately 140°F or 60°C) or warm water
(approximately 120°F or 50°C) according to the manufacturer’s instructions.
Drying Allow the water chamber to air dry out of direct sunlight.
Pre-disinfection Not applicable.
Drying Not applicable.
Disinfection
(high-level
chemical
disinfection)
1. Soak the disassembled water chamber components in a commercially available solution of
ortho-phthalaldehyde 0.55% (eg, CIDEX™ OPA)
2
. Take care that no air bubbles are trapped
against the components.
2. Thoroughly rinse
3
each component according to the manufacturer’s instructions.
2 Disinfection: ResMed water chambers have been validated for 20 cycles using solutions of ortho-phthalaldehyde (0.55% CIDEX OPA
for 12 minutes) according to the manufacturer’s instructions.
3 Rinsing: Thoroughly rinse each component in drinking quality water (five litres per assembly) by immersing it completely for a
minimum of one minute in duration. Repeat the rinse procedure two additional times using fresh water for a total of three rinses.
Drying Air dry out of direct sunlight.
Inspection Perform a visual inspection of the water chamber. If any visible deterioration is apparent (cracking,
crazing, tears etc), the water chamber should be discarded and replaced. Slight discoloration of the
silicone components may occur and is acceptable.
Reassembly Reassemble the humidifier water chamber according to the “Disassembling and Reassembling”
instructions on page 5.
Packaging &
Storage
Store in a dry, dust-free environment away from direct sunlight.
Storage temperature: -4°F to 140°F (-20°C to 60°C).