You will never need another air purifier! Shirasu cleanses the air with a naturally occurring phenomenon.
Shining light on titanium oxide among shirasu causes charge decomposition, producing substances known as OH radicals.
OH radicals are powerful oxidants which steal electrons from nearby organic materials, breaking molecular bonds. This phenomenon is called an oxidation-reduction reaction, which removes unpleasant odors and renders hazardous substances harmless. Therefore, indoor air coming into contact with Shirasu-kabe is always purified. Say goodbye to mechanical air purifiers!
Airborne bacteria sterilization effectiveness