Qhov rooj laj kab hluav taws, tuaj yeem ua lub luag haujlwm ntawm kev tiv thaiv hluav taws los ntawm kev sib cais ntawm cov khoom siv hluav taws xob, kom ua tiav lub hom phiaj ntawm cov khoom siv tiv thaiv hluav taws. Qhov saum npoo ntawm qhov rooj laj kab hluav taws yog txau nrog cov tshuaj tshwj xeeb. Thaum hluav taws kub hnyiab, qhov chaw ntawm qhov rooj laj kab hluav taws yuav decompose high-density carbon dioxide, uas txo cov pa oxygen concentration hauv nplaim taws, thiaj li ua tiav lub hom phiaj ntawm kev tswj hluav taws.