Materials:

Polypropylene safety waste funnel and high density polyethylene or fluorinated high-density polyethylene waste container, polypropylene closure and funnel adapter, polypropylene and PTFE vent plug

For temporary storage of solvent, chemical, and biological wastes. System consists of a chemical- and break-resistant 1 1/8 gal. (4L) HDPE or 2 5/8 gal. (10L) fluorinated HDPE container; and removable funnel with lid, closure/funnel adapter, and screen insert. Large-diameter funnel includes cover with Easy-Snap safety latch to minimize accidental spills and volatile emissions. Funnel easily unscrews from polypropylene closure/funnel adapter for cleaning and quicker access. Closure/adapter includes vent with polypropylene/PTFE vent plug that releases pressure during pouring, and reduces emissions during use; closure/adapter can also connect to external syringe filter. Removable polypropylene screen insert/filter fits at bottom of funnel to trap large particles. US Patent 6,752,183.