Treatments. 1  Soak washcloth in warm water. 2  Dab washcloth on the boil. 3  This treatment allows the pus seeping out of bump, and as the result the boil will shrink.
The earth's atmosphere is approximatively 21% oxygen (really about 20.95%). 78% is nitrogen. The rest is a small mixture of other gases. 7 people found this useful.
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.