A RCRA hazardous waste is a waste that either appears on one of three lists created by the U.S. Environmental Protection Agency, or, if not on the lists, exhibits one of four characteristics of hazardous waste.
How often should oxygen nasal cannulas be changed? Update: Our supplier recommended we change the cannulas monthly and the tubing every 60-90 days. My father has friends who's suppliers have had different guidelines.
How do you repair an oxygen concentrator? Normal air is approximately 20 percent oxygen and 80 percent nitrogen. The portable oxygen concentrator produces 90 to 95 percent pure oxygen, reports the Oxygen Concentrator Store. Concentrators are safer than oxygen tanks, which store compressed oxygen.