What is the reverse laminar air flow principle

The specimen and provision booth is intended in a way to permit mixed air current stream for the creation, operator, and setting. The released dust powders have a lot of dangerous influences and thus their discharge must be kept in check. The provision booth supplied by the laminar air flow dealers is essentially partial cleansing equipment provided with a HEPA sieve. This sieve removes the airborne dust by using the down breeze technique. The benefits of this specimen provision booth are that it comprises no risk of inhalation of dust and is easy to clean. This provision booth grips the powder under sterilized conditions and guarantees that there is no cross-contamination.
The main value behind reverse laminar airflow is that it makes use of negative pressure inside the booth. This pressure averts the seepage of fine powder from the work area to the outside environment. The downward curving direction of air turns out to be very helpful as it delivers full defense to the operator & the product. The specimen provision booth is intended to follow all the GMP rules and has a vertical downflow of air. This provision booth is a highly dense unit with a good working unit.