Perhaps storm drains need filtration systems?
On board, modern aircraft have air filtration systems which remove the majority of viruses and bacteria.
Water conditions are controlled carefully, with extensive filtration systems and computerized climate and chemical controls.
Most visitors insist on bottled water, though the better hotels have adequate filtration systems.
"We can adjust filtration systems to handle heavier concentration of unknown substances," he said.
Filtration systems are varied in design, operation, and application.
There were water filtration systems, gourmet cook sets, even a Java Press for brewing that perfect latte around the coals.
Rajeev spoke with engineers in Kathmandu, and he read books about electric pumps, piping, and filtration systems.
Shellfish have filtration systems that improve water quality; with fewer shellfish, water becomes more susceptible to aberrations like brown tides".
Defenses against such possibilities -- including better air filtration systems -- will have to be one element of homeland defense.
It pollutes filtration systems, electrical and avionic units – and the accompanying sulphuric acid aerosol can eat into rubber parts.
