Khoom nta:
- Cov vaj tse hlau tag nrho ua rau cov qauv muaj zog thiab kev ua haujlwm zoo hauv kev siv.
- Ua ntej lim cais kab thiab plaub hau.
- Hepa lim absorbs me me, huab cua, baterial mus txog 99.7% effeciency
- Activated carbon lim nqus tshuaj lom neeg thiab tsw