A lung specialist has advised against using wet masks to protect against volcanic ash, warning that the practice is ineffective and potentially harmful, according to detikHealth.
The doctor explained that moisture in a mask can clog its filter pores, reducing its ability to block fine ash particles. In some cases, breathing through a damp cloth can also increase respiratory effort, which may aggravate lung conditions. The warning comes as ash from Anak Krakatau spreads across parts of Indonesia, prompting health officials to issue safety guidance.
detikHealth reports that the recommendation is part of broader public health messaging around the ongoing volcanic activity. The Ministry of Health has separately warned that ash from Anak Krakatau can damage lung tissue if inhaled in sufficient quantities, as reported by Kompas.com. Authorities in Tangerang have urged residents to wear masks without resorting to panic buying, while police in Pangandaran have distributed free masks to road users, according to local government and police statements.
Some residents have reported difficulty finding KN95 masks as ash dispersal continues, detikNews noted. The specialist's advice underscores the importance of using dry, properly fitted masks—preferably N95 or KN95 grades—rather than improvised alternatives.
What to watch next: Whether mask supplies stabilize in affected areas and if health authorities issue further guidance on ash exposure as Anak Krakatau activity evolves.
