Which Smoke Generator Is Best For My Smoke Studies? AP35 Ultrapure LN2 Fogger, 5 Cubic Meters per minute, 571 ml fog density / minute for 70 minutes with 20-30 feet of visible airflow distance. The CRF4 is intended to be used on a flat surface, on its feet.To drain water, simply disconnect power, and raise the CRF4 up and drain water from the fog opening.This will aid in drying when the chamber is drained. The fan will operate with no water in the reservoir with the power switch in the ON position.AVOID USING IN IMMEDIATE VICINITY OF ELECTRICAL APPLIANCES, WATER SENSITIVE PRODUCTS AND EQUIPMENT. The fog generated by this device contains microscopic droplets of DI water.To protect the transducers from damage there is a level sensor that will interrupt the input voltage to the transducer module, should the water level drop to a low level. Use of any other liquids or chemicals voids the warranty. Theory of Operation: Ultrasonic cavitation in DI water, WFI (water for injection) or sterile water. It is a significant improvement over other Di Water Foggers by providing the highest volume output of any ultrasonic fog generator sold today. The Cleanroom Fogger is used in a smoke study of airflow visualization. The CRF4 supports USP 797 In-situ Airflow Analysis USP 800 Compound Pharmacy airflow tests Airflow Recovery Tests guided by ISO 14644-3, Annex B12 Airflow Visualization Tests guided by ISO 14644-3 Annex B7 airflow tests for NSF 49 and Bio-Safety Cabinets and airflow requirements using Semiconductor Clean Room Guidelines, Federal Standard 209E. The CRF4 operates for about 45 minutes at maximum fog volume or up to 90 minutes at lower fog volumes. But the CRF4 does not use liquid nitrogen, requiring only DI Water or WFI water to produce this higher volume of fog, adding adjustable fog volume, adjustable airflow, and wireless remote control. The CRF4 fog volume competes with LN2 foggers for fog volume performance. The CRF4 Cleanroom Fogger uses 35 ultrasonic piezo devices to generate 1.25 cubic meters of pure fog per minute with 187 ml of fog density per minute to provide 10-15 feet of visible air flow for smoke studies and air flow characterization in clean rooms, sterile rooms, medical operating rooms and ISO suites.
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