1. Stand mounded version
2. Ceiling suspended version
3. IVF Applicatino
4. Operation theatre model
5. PCR Application

LAMINAR FLOW: Vertical Laminar Air Flow system provides operation in sterile and particle free conditions by continuous flushing of working area of unidirectional vertical and ultra filtered airflow. It assures a full product protection.

Cleanliness	Class 100
Particle Retention	0.3 Micron & Above
Noise Level	65 decibel ± 5
Velocity	90 Feet/Minute ± 20
Worktable	By melamine laminated ply or Stainless steel
Front door	6mm clear acrylic or 3mm Poly carbonate
Illumination	Fluorescent tubes with diffusers.
Other accessories	Manometer, Additional power point, gas inlet & Castors.
Power Supply	230V single phase, 50 Hz
HEPA Filter	Media Ultra clean glass fiber paper - imported
Casing	Epoxy coated CRCA frame
Separators	Fine corrugated aluminum foils
Retention	0.3 Micron
Efficiency	99.97%
PRE Filter	Media Synthetic, non-woven polyester fibers
Casing	Enamel painted CRCA frame Retention 10 - 15 Micron
Efficiency	90 %

Material of construction: Basic cabinet made from water proof commercial ply, with exteriors covered by industrial laminated sheets & interiors coated with synthetic rubber paint over suitable primer base. We also supply the Laminar airflow with complete CRCA sheet metal construction with powder-coated finish.

Blower Assembly: DIDW type blower system, which consists of dynamically & statically balanced aluminum centrifugal impeller driven by an single phase, 1440-RPM motor, enclosed in an powder coated MS casing suitably suspended in a pair springs & connected to the filter chamber through flexible canvas duct.

1. Floor Mounted Version
2. Biotech Version
3. Tabletop Version

AIRTECH offers widest range of Laminar Airflow Equipments & Systems for the Application in the field of Scientific & Industrial Research, Micro Biology & Tissue Culture, Hospitals & Medical Education, Drugs & Pharmaceutical Industries, Electronics & Space Applications, etc. Our range of equipment & systems are designed with best of its quality & performance & are accepted by various Govt. & Private sector establishments across the nation.

Technical Details
Cleanliness	Class 100
Particle Retention	0.3 Micron & Above
Velocity	90 FPM + 20
Illumination	750 - 800 lumen
Noise Level	60 - 65 decibels (A)
Vibration level	200 micron pp
Standard	ISO 14644-1
Power supply	220V Single Phase

AIRTECH offers Laminar Flow equipment constructed by using industrial block boards with exterior surface covered by decorative laminated sheets & inner surface coated with synthetic rubber paint. Air tight joints are ensured by using best quality adhesives. HEPA filters made of micro clean glass fibre paper of imported origin with fine corrugated aluminium foil separators. Pressure drop will be 23 mm WG. Pre & filters are manufactured by using synthetic non woven polyester fabric material with HDPE mesh reinforcement on both sides. Both the filters are protected by suitable grill arrangement. Blower assembly consists of a single phase,double shaft motor, directly coupled with a pair of centrifugal type aluminium impeller & enclosed within a specially designed MS casing. Optional accessories includes Stainless steel work table in lieu of Laminated table, UV lamps, Clear acrylic front doors, Standard accessories includes power points, Pressure manometer castor wheels or leveling screws, illumination, side screens etc. Horizontal flow model with bottom stand arrangement. This type of Laminar air flow benches are used for tissue culture applications. It provides more leg space & thereby helps to keep the surrounding clean. Vibration is reduced to a very minimum level by keeping the total work station on a heavy duty structural work. The stainless steel work table is isolated from the main unit. An optional steri-pot holder can be provided below the work table with control switch located adjacent to that.

Bio-safety cabinets are available in Stainless steel and GI with PU coated construction. Worktables are of removable type and suitable for oven baking. Inner surface are completely line with stainless steel. HEPA filters are of Minipleate type. Differential pressure is monitored through specially designed low-pressure gauges. Working chamber is provided with UV & Illumination tubes. Feather-touch control switch with indicators are provided for the operations of blower / illumination / UV

Bio-safety cabinets are available with various optional Special features such as VFD controlled air-blowers for adjustable airflow, Operation of UV integrated with the front-door movement to avoid accidental exposure to UV rays, warning alarm when differential pressure exceeds the limit to indicate filter choking level, warning alarm when the front sash is opened beyond safety-level Bio-safety cabinets are available in various standard sizes and custom-built sizes to suit user's requirement.

• Class I Biosafety Cabinet
• Class II Biosafety Cabinet - Type A1
• Class II Biosafety Cabinet - Type A2
• Class II Biosafety Cabinet - Type B1
• Class II Biosafety Cabinet - Type B2
• Class III Biosafety Cabinet

Class - I Bio Safety Cabinet
Recommended for personnel & Environmental protection only
Airtech Class I Biosafety Cabinet is designed for operator and environment protection from materials hazardous for operator's health. The operation is based on the forced removal of hazardous substances from the working zone through the air up-flow, with high-effective air filtration and its exhaust into the environment. Working with 2 agents, there is no risk of their cross-contamination owing to unidirectional (laminar) air up-stream.

Although the Class I cabinet protects the operator and the environment from exposure to biohazards, it does not prevent samples being handled in the cabinet from coming into contact with airborne contaminants that may be present in room air.

All Class I biological safety cabinets are suitable for work with microbiological agents assigned to biosafety levels 1, 2 and 3.

Class II Biosafety cabinet - Type A2
Airtech Class II Biosafety Cabinet Type A1 & A2 are designed for the security and protection of operator's product and environment from pathogenic agents and microorganisms transmitted in respiratory way and also for creation of a bacterial dust free air environment. It has a common plenum from which 30% of air is exhausted, and 70% re-circulated to the work area as part of the downflow. Type A cabinets drain out air directly back to the laboratory, and they may contain positive pressure contaminated plenums. When toxic chemicals must be employed as an adjunct to microbiological processes, these cabinets should not be used. Exhaust HEPA filtration only.

Removes airborne aerosols including biohazards, and not chemical fumes.

The Class II Type A1 consists of the positively-pressurized contaminated plenum bordering the ambient environment, and therefore is less safer than the Class II Type A2 that has a negative pressure surrounding the positively pressurized contaminated plenum. In any unlikely event of a leakage on the positive plenum, the leaking aerosol will be pulled by the negative pressure back to the positive plenum, which prevents it from leaking out. On the grounds of safety, the Type A1 design is now considered obsolete. In the A2 cabinet, approximately 70% of air from the positive plenum is re-circulated as downflow.

Class II Biosafety cabinet - Type B1
Airtech Class II Type B1 biological safety cabinet has a common plenum from which 70% of air is exhausted, and 30% re-circulated to the work area as the downflow. Type B1 cabinets also have a dedicated exhaust feature that eliminates re-circulation when work is performed towards the back within the interior of the cabinet. Toxic chemicals employed as an adjunct to microbiological processes should only be employed if they do not interfere with work when re-circulated in the downflow.

Class II Biosafety cabinet - Type B2
Airtech Class II Type B2 cabinet all inflow and downflow air is exhausted after HEPA filtration to the external environment without recirculation within the cabinet. Type B2 cabinets are suitable for work with toxic chemicals employed as an adjunct to microbiological processes under all circumstances since no re-circulation occurs. In theory, Type B2 cabinets may be considered to be the safest of all Class II biological safety cabinets since the total exhaust feature acts as a fail-safe in the event that the downflow and / or exhaust HEPA filtration systems cease to function normally. However, Class II Type B2 cabinets are, in practice,difficult to install, balance and maintain.

Class III Bio Safety Cabinet
Airtech Class III biological safety cabinet provides an absolute level of safety, which cannot be attained with Class I and Class II cabinets. All Class III cabinets are usually of welded metal construction and are designed to be gas tight. Work is performed through glove ports in the front of the cabinet. During routine operation, negative pressure relative to the ambient environment is maintained within the cabinet. This provides an additional fail-safe mechanism in case physical containment is compromised. On all Class III cabinets, a supply of HEPA filtered air provides product protection and prevents cross contamination of samples. Exhaust air is usually HEPA filtered and incinerated.

Alternatively, double HEPA filtration with two filters in series may be utilized. Materials are transferred into the cabinet using a pass-through unit installed at the side of the work area. Class III cabinets usually exhaust air back to the laboratory; however, air may also be exhausted via a dedicated ductwork system to the external environment. When a dedicated ductwork system is employed, they are also suitable for work employing toxic chemicals as an adjunct to microbiological processes. All Class III biological safety cabinets are suitable for work with microbiological agents assigned to biosafety levels 1, 2, 3 and 4. They are frequently specified for work involving the most lethal biological hazards.

Specifications
Cleanliness	Class 10000 (& Class 100)
Velocity	30 Mtr. / Sec.
Lighting	By Fluorescent tubes - 2 x 20 W
Shower timing	0 To 120 Seconds - Adjustable
Vibration	200 micron pp
Sound Level	70 Db A+./- 5%
Blower capacity	1200 CFM
Pressure	75mm WG
Powered By	2 HP, 3000 Rpm Motor.
Make	KIRLOSKER / CROMPTON
Power Supply	415 V, 3 Phase

MATERIAL OF CONSTRUCTION Air Showers Cabinet by Water Proof Commercial Ply in Teak Wood Structure. External surface covered worth industrial laminated sheets and air plenum surface coated with synthetic rubber paint over suitable primer base. Platform covered by aluminium grated or PVC mat flooring and door are made of 6 mm clear glass in aluminium pipe with automatic door closures & manual locks. Pre filter made from synthetic polyester non woven fiber, particle retention 10 to 15 micron. Efficiency 90%, Pressure Drop 6 mm WG. HEPA FILTERS are made of micro clean, glass fiber paper of imported origin, Particle Retention 0.3 Micron & above pressure drop - 23 mm WG. CONTROLS Motor by DOL Starter, Doors by Electromagnetic Interlocking. Overload Protection by thermal relay. Shower duration by preset electronic timer. Shower operation by push buttons. Emergency off by mushroom head push button.

Invisible dust has a telling effect on sensitive electronic equipment. It goes without saying prevention is always better than cure. Dust prevention is no longer a luxury but a necessity in almost all spheres of life.

Aircutain is a must for:-

• Pharmaceuticals & Food Industries
• Laboratories
• Clean Rooms
• Computer Facilities
• Cold Storages
• Show Rooms & Restaurants
• Electrical & Electronic Industries
• Hospitals

AIRTECH offers a wide range of FUME EXHAUST HODDS to suit every specific application of the user. The hood is fabricated from; water proof commercial quality ply & block boards externally covered with industrial laminated sheets and interiors coated with epoxy paint over a suitable primer base . The inner walls of the working chamber is covered with epoxy coated asbestos or FRP or HDPE lining or as required. The working table is made of acid proof glazed tiles and provided with gas/air petcocks and additional power points, diffused fluorescent tubes.

Clean air Fume exhaust hoods are provided with suitable ducting of FRP or PVC material with required diameter and length as per the site conditions.

Clean air Fume exhaust hoods are also available with full FRP construction or combination of FRP and Ply, With or without work bench. We also design and manufacture Scrubbers, Fume Extraction & Dust Collection Systems.

Powder Containment booths are used to control the hazardous emissions of powder dust during powder dispensing/sampling processes with out any risk to the operator and product as well protecting the environment. The down draught of HEPA filtered air prevents airborne dusts caused by handling operation away from the operator breathing zone. The air forced downwards is extracted at low level into the booth's filteration system, where dust particles are contained at three level of filteration prior to being circulated back in to the booths air stream.

Type	Front Open
Direction of flow	Vertical
Material of Construction	S.S 304 / S.S 316 or CRCA Powder Coated
Cleanliness	Class 100 as per US FED STD 209E
Particle Retention	0.3 micron & above
Noise Level	65 dB on On Scale 'A' ± 5
Velocity	90 FPM ± 20 %
Illumination	Fluorescent tubes diffusers
Pressure Differential	0-25 mm inclined Manometers / Magnehelic Gauge
Power Supply	230 V single Phase , 50 Hz
Pre-Filters	10 - 15 micron rating, 3- Layers of HDPE mesh, 6mm Pressure Drop
Intermediate Filters	3 micron & above, two layers of HDPE woven mesh and one layer of Non-woven polyester Bondex Media, 9 mm Pressure Drop, Efficiency 97%
Supply HEPA Filters	99.97% efficiency @ 0.3 micron rating
Exhaust HEPA Filters	99.97% efficiency @ 0.3 micron rating
Blower Assembly	Statically & Dynamically balanced DIDW type blower system

Special Features
Designed in accordance with WHO-GMP
3-Stage Filteration like Pre filter, Fine Filter, HEPA filter.
Heavy duty Low noise motor blower assembly.
Suitable to accommodate to floor & table balances.

1. Positive Pressure Module
2. Recirculatory Module

Positive Pressure Module

Positive pressure modules are designed to provide a clean area within a small enclosure or cell. These pressure module adopts the same LAMINAR AIR FLOW principle. Pre filters are fixed at the rear end of the unit and the blower assembly used in the system sucks the air & passes to the HEPA filter chamber where the air is filtered to the maximum level.

Dimensional Details
HEPA Filter size - Media Ultra clean glass fiber paper - imported
Casing - As per Specific Requirement
Particle retention - 0.3 micron
Cleanliness - CLASS 100
Overall - CLASS 10000
Power supply - 220 V.Single phase

The Basic cabinet is fabricated from pre treated industrial block board with exteriors covered by decorative laminated sheets & interiors coated with synthetic rubber paint. Alternatively, the total construction may be of CRCA sheet metal with suitable MS structures finished by epoxy paint or powder as per requirement.

Recirculatory Module

Airtech makes Cleanair Recirculation Modules are designed as window mounded or floor mounted types. It will help create a Ballon effect in bioclean facilities by pumping in filtered air,so the positive static pressure is developed and maintained with in . Any air movement or trajectories of airborne contaminats is therefore biased along a clean to dirty axis.

Pass through box is designed to minimize traffic and contamination entry into the clean room. Enables parts, tools and other work items to be passed to and from the room. Unit acts as an air lock device preventing ambient air from entering, or clean air from exiting the clean room.

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Standard features includes

• Mechanical interlocking for the doors
• Swing type doors with view panels
• Door open indicator,
• Optional UV lamp
• Fluorescent tube light etc.
• Available in Static & Dynamic versions
• Available in Different sizes to suit customer requirement
• Available in complete SS or MS with PU painted construction

HEPA filters are available in all sizes in the deep pleat version. Non-Standard sizes can also be manufactured as per specific customer requirements The filter can be assembled with / without flanges Available in casing thickness from 1 to 1.5 mm in variants of Mild steel/Galvanized steel/Aluminium/Stainless steel Powder coating is the standard surface finishing offered Filtration media is all glass, micro fibre, fire retardant HEPA filtration media manufactured by M/s.Lydall Inc, USA. Aluminium separators made from 0.04 mm thick aluminium foil in the case of deep pleat version. High impact poly styrene separators in the case of mini pleat version Synthetic soft rubber gasket with dovetail joints.High Efficiency Particulate Air Epoxy & Silicon Sealants Initial pressure drop of 18 mm WC for deep pleat filters and 14 mm WC for mini pleat filters Suitability to class 100 clean rooms and work stations as per FED:STD:209E Efficiency 99.98% down to 0.3 microns. Suitable for H13 class as per EN779 All filters are particle counted and DOP leak tested Filter construction as per recommendations of IES-RP-001 Each filter is accompanied by a test certificate

APPLICATIONS
Clean rooms for micro component electronic manufacture & assembly
Pharmaceutical Processing
Aerospace Engineering
Genetic & Biological research
Biohazard Atmosphere
Laminar Flow Workstations
Bio Safe Hoods(Biological Safety Cabinets)
Hospital Operating Theaters & Intensive care units
Atomic Research
Pre filter stage to ULPA systems