Purifier Filtered PCR Enclosures provide ISO Class 5 conditions appropriate for polymerase chain reaction experiments. Exclusive features: variable digital timer for UV exposure with eight settings in minutes of 5, 10, 15, 30, 60, 120, 240 and continuous; bi-fold doors that close the sash opening; aerodynamic air foil; UV-resistant, glacier white and gray, dry powder epoxy-coated aluminum and steel construction; UV-opaque and resistant 1/4" thick clear tempered safety glass sash and sides; ergonomic 10 degree angled and hinged sash that pivots upward, locks to a loading height of 20" and has wiping seals to contain contaminants. Other features: 99.99% efficient HEPA filter, variable speed built-in blower with motorized impeller and solid state control rated for 10 amps, Minihelic pressure gauge, air diffuser, fluorescent lamp, 254 nm UV lamp with 3-way switch (fluorescent, UV and off), blower switch, 9.4" high sash opening, two utility ports with iris openings and plugs. One year warranty. 115V (230V available).