Esco Airstream® Horizontal Laminar Flow Cabinet offers proven protection for your samples and processes. With over thousands of units in use worldwide, this model offers a sensible balance of quality, performance features and cost-effectiveness. Like all Esco cabinets this model features many key innovations for which Esco is recognized for: mini-pleat separatorless ULPA filter technology, the best product protection in the world, external rotor motors, superior filter mechanical construction.

• Mini-pleat separatorless ULPA filter technology reduces energy consumption and delivers increased laminar airflow uniformity for better product and cross contamination protection. ULPA filters are double scan tested, at the time of manufacturing, and after installation.
• ISO Class 3 air cleanliness within work zone as per ISO 14644.1 (equivalent to Class 1 as per US Federal Standard 209E, 100 times "cleaner" than the usual Class 100 classification on cabinets offered by the competition). All materials used in the product are cleanroom compatible.
• High-quality polyester pre-filter and main ULPA filter with a typical effi ciency of 99.9997% at MPPS and 99.9998% at both 0.3 and 0.12 microns provide the best product protection in the world; typical ULPA filter lifespan is more than 3 years depending on the operating conditions.
• Integral filter metal guard on the ULPA filter prevents accidental damage the filter media; seamless filter gasket is permanently molded on the filter frame and will not deteriorate over time; aerosol (DOP/PAO) challenge test port included.
• Built-in solid state variable speed controller(s) (infinitely adjustable from zero to the maximum setting) with built-in RFI and noise filters is superior to conventional "step" controllers.
• Standard cabinet control system consists of separate switches / indicator lights for blower, lights and UV light (UV light switch is interlocked with the light and blower switch for enhanced safety) plus a pressure gauge for airfl ow monitoring.

• Room air is taken in from the top of the cabinet through a disposable pre-fi lter with 85% arrestance; this serves to trap larger particles and increase the life of the main filter.
• Air is forced evenly across the ULPA fi lter(s); the result is a stream of clean laminar air within the work zone of the cabinet; this dilutes and fl ushes all airborne contaminants from the interior.
• A nominal filter face velocity of 0.45 m/s or 90 fpm ensures that there is a suffi cient number of air changes within the enclosed area of the cabinet in order to maintain cleanliness.
• The purified air travels across the internal work zone of the cabinet in a horizontal, unidirectional stream and leaves the main work chamber across the entire open front of the cabinet.