Liminar Flow Systems For O.T.ROOM

The operation theatre has to be with clean air for operation, like orthopedic surgery, to avoid, infections of operation wounds which may be fatal in certain cases, involving lots of legal complication these days.

To keep the air clean of dust, fungus, microorganisms, filtration is the only system available. The HEPA (High Efficiency Particulate Absolute) filter, the filtration of air on control velocity condition, can provide cleanliness of air as defined in the federal standard 209 E. The system as a whole is know as Laminar Flow System. For clean air in the O.T.Room vertical air flow unit of O.T.Room, the system can be tailor made as per customer's requirements.

Working Principle :
Atmospheric air suction through 5 micron filter and pass through HEPA filter on controlled velocity and provide sterile air.

Working Principle for OT Room :
The pre-filtered units are placed in suction point on two opposite walls of O.T. The pre-filters have adjustable speen blowers with over temperature protection. The O.T. air suck from bottom side via pre-filters and sent back through vertical chamber (with HEPA Filters) placed exactly over operation table. The efficiency of HEPA filters is 99.999% of all particles larger then 0.3 micron. The velocity of air at outlet is 0.45 ,/s, which provides Bio-Clean Air as per Federal Standard 209 E.

The Control Box contains Normal, Start, Stop & Speed control for blowers. Supervision panel with individual LED indicator for each blower showing their status and an alarm circuit for emergency.

Air Movement
The air flow is vertical from the filter ceiling over the operating table to the suction units placed at the bottom of two opposite walls of the Operating Theatre. The Vertical flow from ceiling units divided over the operation area of both the side depending on the customer's requirement. Effective working areas can be adjusted through ceiling unit design. The air circulation will be 120 to 400 times depending on O.T. Room size. This Laminar air flow is ultra cleaned over the entire operating area and instantly the theatre is bacteria free.

Blower and Motor
The unique super silent centrifugal blower with integral motor is statically and dynamically balanced to extremely close limits. All moving balanced to extremely close limits. All moving parts are isolated from the casing by efficient anti-vibration mountings. The no speed pulsation, totally sealed, continuous duty motor with built -in overload protection is factory lifetime lubricated and needs no service. Electric Speed Control, due to a havened speed performance curve, the blower gives almost automatic speed compensation for rising air resistance as the static pressure across the HEPA- filter builds up to its maximum dust loading capacity.

Extra Equipment
To compensate for heat emission from the cooling coil can be installed for connection to cooling water. (Noise Level <53 dBA)

Federal standard 209E
Class 0.1 0.2 0.3 0.5 5.0
1 35 7.5 3 1 -
10 350 75 30 10 -
100 - 750 300 100 -
1000 - - - 1000 7
10000 - - - 10000 70
100000 - - - 100000 700
The Class limit particle concentrations shown in Table 1 and figure 1 are defined for class purposes only and do not necessarily represent size distribution to be found in any particular situation.
Standard Model Available For O.T. Room
Model H.P. No. of Filters CFm Handle Working Area
CH 20 10 20 10000 11.5ft. x 9.5 ft.
CH 16 10 16 8000 9.5 ft. x 9.5 ft.
CH 08 5 8 4000 9.5 ft. x 4.5 ft.
Liminar Flow Systems for O.T.ROOM
Horizontal Laminar Flow Bench
Modular Systems With Vertical Flow
Pressure Module
Bio Hazard Cabinet
Vertical Down Flow Mobile Tent
Sterial Fume Hood
Laminar Air Flow - Hanging Model
Cylinder Tune Gowning Benches
Pass Box

Sterile Garment Cabinet

Sales Office: S-437, Phase-IV, Shivalik Nagar, B.H.E.L. Haridwar, Uttarakhand,INDIA
Phone: +91-9358675057, +91-9359192949 Fax: +91-1334-265486
2012 | Crossair & Co. Design by: SKM