The present invention provides a
biosafety laboratory, belonging to the technical field of laboratories. The
biosafety laboratory includes a laboratory, an auxiliary room, a buffer room, and an air
shower room arranged inside the buffer room. The air
shower room includes an air corridor and a static pressure box, and also includes a
fresh air system, a diversion mechanism, and an
energy storage mechanism. Through the setting of the
energy storage mechanism, when the air inlet pipeline intakes air, the gas enters the inside of the adjustment box, can push the
piston plate to move, can enable the clamping member to limit the position of the limiting block, can store energy for the first elastic member. When the air
shower room blows air, the movable rod drives the
extrusion member to move towards the limiting member, can enable the limiting block to break away from the limit of the clamping member. When the air shower room stops blowing air, the fourth elastic member resets, the
extrusion member disengages from limiting the limiting block, the energy stored in the first elastic member is released, the
piston plate can extract the gas inside the static pressure box, can make the pressure inside the air corridor in a negative pressure state, and can reduce the flow of the gas inside the air corridor.