The Class I Biosafety Cabinet Is Designed To Provide Personnel And Environmental Protection. ● Class I Biosafety Cabinet Does Not Protect The Product From Contamination Because Un-purified Room Air Constantly Enters Into Work Area. ● As A Partial Containment Unit, The Class I Biosafety Cabinet Is Suitable For Work In Low To Moderate Risk Agents (Biosafety Levels 1,2 And 3) Where There Is A Need For Control But Not For Product Protection. ● Unlike Conventional Fume Hood, The HEPA Filter In The Class I Biosafety Cabinet Pro The Environment By Filtering Air Before It Is Exhausted. ● With The Negative Pressure, Personnel Protection Is Made Possible By Constant Move Of Air Into The Work Area.