The mixture rule states that any mixture of a listed hazardous waste and a non-hazardous waste remains regulated as a hazardous waste. Mixtures of characteristic wastes and non-hazardous waste are regulated as hazardous waste if the resultant mixture continues to exhibit the characteristic.
1 Wash the cannula in soapy water and rinse it with a solution of 10 parts water and one part vinegar. 2  Rinse thoroughly with hot water and hang to dry.  This connects the nasal cannula to the oxygen concentrator. It doesnât need to be cleaned, but plan to replace it every 6 to 12 months advises the ATS.
CPAP machine filters for the ResMed S9 series of CPAP and VPAP machines. Available in 3,6,9, and 12 packs of disposable filters. CPAP machine filter should be replaced every 1-3 months or once they begin to show signs of debris and/or discoloration. Your Price: Starting at $9.99 (3 pack).