Across, BC-4F.110-110V, 2 Ft Class II Type A2 Biosafety Cabinet with Detachable StandBC-2F.110-110V Includes Only: Ai 4 Ft Biosafety Cabinet - 1 pcDetachable armrest - 2 pcsOn/off foot switch - 1 pcRemote - 1 pcBottom drain port assembly - 5 pcsBackup UV light tube - 1 pcHex wrench - 1 pcFront glass panel motor adjusting tool, plastic - 1 pcFuse (for glass panel control board) - 5 pcsHex bolt - 8 pcsBig, small washer and lock washer - 4 setsUsers manual - 1 pcA biosafety cabinet, also called a biological safety cabinet or microbiological safety cabinetis an enclosed, ventilated laboratory workspace for safely working with materials contaminated with (or potentially contaminated with) pathogens requiring a defined biosafety level.The primary purpose of a BSC is to serve as a means to protect the laboratory worker and the surrounding environment from pathogens. All exhaust air is HEPA-filtered as it exits the biosafety cabinet, removing harmful bacteria and viruses. This is in contrast to a laminar flow clean bench, which blows unfiltered exhaust air towards the user and is not safe for work with pathogenic agents. Neither are most BSCs safe for use as fume hoods. Likewise, a fume hood fails to provide the environmental protection that HEPA filtration in a BSC would provide. However, most classes of BSCs have a secondary purpose to maintain the sterility of materials inside (the "product").Class II: cabinets provide both kinds of protection (of the samples and of the environment) since makeup air is also HEPA-filtered. There are five types: Type A1 (formerly A), Type A2 (formerly A/B3), Type B1, Type B2 and Type C1. Each type's requirements are defined by NSF International Standard 49, which in 2002 reclassified A/B3 cabinets (classified under the latter type if connected to an exhaust duct) as Type A2, and added the Type C1 in the 2016 standard. About 90% of all biosafety cabinets installed are Type A2 cabinets.Features:NSF certifiedGreat for COVID-19 specimen handlingMotorized front glass viewing windowDual HEPA filters with life indicatorUV light life indicatorWaterproof in-chamber power socketsLarge LCD displayEasy-to-clean stainless steel chamberSpecial treated unit housing with anti-mold and antiseptic coatingAuto start and stop function (e.g. UV lights)Automatic flow speed adjustmentPneumatic front panel supports for easy maintenanceBC-4F.110-110V.