Laminar Flow Hood Testing and Certification Laminar flow hoods (LFHs) are designed to provide HEPA filtered unidirectional airflow to a work area in which clean, high quality applications and manipulations are required. The optimal design of a LFH is to protect the product from contamination. CEM specializes in the testing, certification, repair and maintenance service of LFHs. All testing is provided with calibrated instrumentation in accordance with the appropriate industry test standard and /or guideline. CEM is an authorized service representative for most hood manufacturers. CEM currently provides testing and certification for the following types of LFHs and associated HEPA filtration devices: LFHs are tested and certified to meet guidelines as established by IEST-002, ISO 14644 and manufacturer’s specifications. The testing of each hood includes a custom report outlining the final results in detail. Listed below are the services provided by CEM. Depending on the facility and related industry, the appropriate scope of testing shall apply.

Laminar Flow Hood Testing Services Air Velocity Profile: Verifies the hood is providing the proper air balance to protect the product from contamination Integrity Testing of HEPA filters: Assures the existing HEPA filters are free of leaks and are properly sealed to prevent leakage or possible contamination to the work area Non-Viable Particle Counting: Testing provided to verify Cleanroom is meeting designed air cleanliness classification level per ISO 14644 specificationsair duct cleaning deerfield beach Viable / Microbial Air Testing: Assures Bioburden levels for bacteria and/or fungi are within acceptable parameters per the Cleanroom design or client specificationsair duct cleaning rockwall tx Viable / Microbial Surface Testing: Assures Bioburden levels for bacteria and/or fungi are within acceptable parameters per the Cleanroom design or client specificationsbionaire portable air purifier

Airflow Visualization Profile: Verifies the hood is providing non-turbulent airflow to work area and that airflow is not escaping the front opening or sash seal at the workface opening Temperature, Relative Humidity Measurements: Verifies the LFH is operating within its design specifications Lighting Measurement: Verifies the lighting level is meeting the LFH design level or worker comfort level Sound Level Measurement: Verifies the sound level is not exceeding the LFH design or worker comfort level> How To Start Recovery > Hard Drive Recovery > SSD Data Recovery > RAID Data Recovery > Apple Mac Recovery > Mobile Device Recovery > SQL Server Recovery > Tape Data Retrieval > Flash Media Recovery > File Systems Recovery ACE Data Recovery has clean room facilities in house at each of our locations. Some recovery company's go out of their way to advertise their "Class 100" clean room, we have them too. The true test for cleanliness is to measure airborne particulates when the room is in production

and this is exactly what we do. We are very comfortable in knowing that we are a solid Class 100 (ISO-14644-1 Class 5) and very close to Class 10 equivalent during production, with an average count of 17 0.5mm particles per cubic foot. Equipment inside the cleanroom is designed to generate minimal air contamination. Cleanroom furniture is designed to produce a minimum of particles and to be easy to clean. Common materials such as paper, pencils, and fabrics made from natural fibers are often excluded, and alternatives used. Cleanrooms are not sterile (i.e., free of uncontrolled microbes); only airborne particles are controlled. Particle levels are tested using a particle counter. Class 100 cleanrooms are kept at a positive pressure so that if there are any leaks, air leaks out of the chamber instead of unfiltered air coming in. Our cleanroom HVAC systems control the humidity to low levels, such that extra equipment ("ionizers") is necessary to prevent electrostatic discharge (ESD) problems.

Cleanrooms maintain particulate-free air through the use of ULPA filters employing laminar air flow principle. Laminar, or unidirectional, air flow systems direct filtered air downward in a constant stream towards filters located on walls near the cleanroom floor. For the finest in clean room construction, equipment and supplies, please visit Lasco Services.Are you ready for your FREE evaluation? Request Quote or call Toll Free October 2015, Volume 8, Issue 5, pp 551–565The ventilation needed to control thermal plume and particle dispersion from manikins in a unidirectional ventilated protective isolation roomResearch Article Indoor/Outdoor Airflow and Air QualityFirst Online: 06 May 2015Received: 30 December 2014Revised: 07 April 2015Accepted: 14 April 2015DOI: 10.1007/s12273-014-0227-6Cite this article as: Yang, C., Yang, X. & Zhao, B. Build. AbstractInfection is a major cause of death for the immunocompromised patients whose immune mechanisms are deficient.

The most effective way of protecting these patients is the total environment protection such as protective isolation room (PIR). Unidirectional airflow ventilation is usually used in PIR. The supply air velocity in PIR can affect not only the cleanliness level of the room and total environment protection effects to the patients, but also the energy consumption and initial equipment investment of the room. Computational fluid dynamics (CFD) program is used to simulate the airflow field and the concentration distribution of the particles from human body and breathing. Three scenarios when the manikin is standing, sitting and lying are investigated in this study. The intensities of supply airflow with different velocities and the upward airflow induced by thermal plume with different postures are compared. The qualitative and quantitative analysis of the simulation results show that the required supply air velocity to control the thermal plume and particle dispersion from human body and breathing is at least 0.25 m/s when the manikin is standing or sitting, and 0.2 m/s when the manikin is lying.