Plua plav Activated carbon plua plav yog ib yam ntawm cov khoom siv tsis muaj hmoov av. Nws cov khoom tseem ceeb yog carbon, yog li nws yog cov hmoov av inorganic.
Powdered activated carbon tuaj yeem nqus cov formaldehyde thiab benzene. Tshwj xeeb tshaj yog txiv maj phaub plhaub activated carbon, nws yog ib tug kuj pheej yig thiab tswv yim txoj kev. Nws cov yam ntxwv yog lub cev adsorption, uas yog tag nrho thiab tsis yooj yim rau kev ua pa phem thib ob. Nws tuaj yeem deodorize thiab detoxify. Tsis muaj tshuaj ntxiv thiab tsis muaj kev cuam tshuam rau tib neeg lub cev.