Unwashed PUF plugs for both low-volume and high-volume sampling.

• Flame retardant free
• Easier to clean for trace analysis
• Use for collection of semivolatiles (pesticides, PCBs, PAHs)
• Suitable for ambient, indoor, and industrial hygiene applications

Both large high-volume (220 to 280 l/min) and small low-volume (1 to 5 l/min) PUFs available. PUF/XAD-2 "sandwiches" capture a wider range of semivolatiles.