SWAB, Air, And Bulk
Swab sampling is a method recommended done alongside water samples. Bulk samples can be tested for Legionella. Often bulk samples are sludge from the bottom of a condensate pan scraped off a cooling coil. Samples should be collected in a sterile container, kept cool and transported to the laboratory within 24 hours of collection. Air samples can be collected using special Legionella media which can be ordered from the lab.