STATIC AND DYNAMIC PASS BOX

A pass box is one of the cleanroom systems, which is used to transfer materials from one side to the other side through the controlled environment to avoid airborne cross-contamination. As the name states itself, the primary and only work of a pass box is to pass material from one side to another without raising contamination concerns and if any particulate matter presents on the material surface, it swipes away during the operation. The interlocking door mechanism is the prime feature of a pass box when the door on one side is open the door on the other side remains closed. It is popular with other names such as cleanroom pass-through, the clean transfer window, and transfer hatch; in addition, it is widely used in microbiology laboratories in the food, pharmaceutical, and chemical industries.

A pass box is designed in two different types; static and dynamic, it is the user-specific requirement that decides the right design configuration. The difference between these two is explained as:

DYNAMIC PASS BOX

Dynamic Pass Box Works like an airlock or Laminar Air Flow unit. Clean air enters the pass box and prevents the entrance of contamination.

STATIC PASS BOX

Pass boxes are used to transfer material for blending, granulation, or sterilization in the manufacturing area and sterilization & incubation in the microbiology laboratory. In some cases, equipment parts are also transferred through the pass boxes in sterile manufacturing areas.

TECHNICAL SPECIFICATIONS

MODEL	STD-DPB	STD-SPB
Design type	Dynamic	Static / Passive
Cleanliness level	Class 100	-
Internal Dimension	As per Client Requirement	As per Client Requirement
MOC	Stainless steel 304	Stainless steel 304
Illumination	LED tube light	LED tube light
Air system	Motor-blower with suspension arrangement or EC blower	-
Filters	Pre filter (95% down to 5 micron) HEPA filter (99.97%) *Protected by SS grills	-	-
Door	Two side doors / 3 side door Glass window SS handles & SS hinges. Electromagnetic Interlocking system	Two side doors / 3 side door Glass window SS handles & SS hinges. Electromagnetic Interlocking system
Standard Fittings	UV Light Light indicators for door SS Handles & SS hinges On / Off Switch for blower	UV Light Light indicators for door *SS Handles & SS hinges
Power Supply	220 Volts / 50 Hz	220 Volts / 50 Hz
Optional	MOC SS 316 / 316 L Differential Pressure Gauge DOP Test Port Flange Test certificates Calibration certificate Mechanical door interlocking Door buzzer *UV light hour meter	MOC SS 316 / 316 L Flange Test certificates Mechanical door interlocking Door buzzer UV light hour meter

Dispensing Booth / Sampling booth / Weighing booth/ Reverse Laminar Air Flow

Pratham HVAC Solutions manufacture and supply standard and customized (in terms of functionality and capacities) an exclusive line of Dispensing booths which is a kind of partial purifying equipment for filling, refilling, weighing, and sampling raw material and compounds. It is provided with the HEPA filter, which prevents airborne dust by the down drought technique. The unit eliminates powder contamination to protect the operator and the surrounding environment.

Dispensing Booth

The dispensing booth is also called a pharmaceutical sampling booth and pharmaceutical weighing booth. Our Sampling booth comes with two to three validation ports for Pre-filters and HEPA filters. DOP test of dispensing booth must be repeated every 6 months for better functioning of the Sampling booth. Pharmaceutical Dispensing booths are used in the Pharmaceutical Industry in the field of Human Body injectables.

Application

Drug Formulation
Chemical Industry
Product Dispensing
Large Scale Powder
weighing and dispensing
Raw Material Dispensing
Pharmaceutical Industry
Food Industry
Cosmetic Industry

Dispensing Booth Working Principle

Downward Forced air of sampling booth extracts at a low level into the booth’s cleanliness filtration system where contaminated particles recirculated into the booth Air Flow. In standard Working conditions of the pharmaceutical dispensing booth air is pulled through the main chamber to steel exhaust grills used to fasten the HEPA & PRE-filters fitted in the rear side of the booths, it suppresses airborne dust particles away from the users breathing area.

Features

1. Customized design
2. A uniquely designed air duct effectively controls the noise.
3. Smooth transitions of the wall and ground can eliminate the blind angle.
4. The differential pressure gauge is equipped to real-time monitor the filters.
5. Intelligent control mode and alarm system ensure the reliability of running.
6. An automatic changeable frequency system monitors the air velocity to ensure its stability in the work area.
7. Uniform flow design of the main working area
8. The sampling booth has primary filters, medium efficiency filters, and HEPA filters
• HEPA Filter (0.3 microns)
• Fine Filter (5 microns)
• Pre-Filter (10 microns)
• more than 99.97% at 0.3 micron
9. Motor Blower Assembly
10. U.V. Light
11. Fluorescent Lamp
12. Operating Switch
13. Static Pressure Manometer
14. SS 304/316/316L construction
15. Ultra-quiet noise level of not more than 65 dBA
16. Durable and easy-to-clean stainless-steel body
17. Glare-free fluorescent light
18. PVC Flexible Curtains on all three sides

Dispensing Booth Parts and Functioning

HEPA Filters

HEPA filters prevent airborne dust particles up to 0.3 microns with airflow from top to downside. HEPA Filters are fitted on the top side of the machine and are also known as mini pleat filters.

Prefilters

Washable Box-type synthetic non-woven media filters are fitted on the bottom side of the machine. Rated Airflow is 500 CFM with an efficiency of 90% down to 10 microns.

UV Lights

Two feet of UV light fitted on the top with the illumination light. Testing Report of UV light is also supplied with the IQ/PQ/DQ Documents.

Differential Pressure Gauge

Magnehelic Gauges are used to measure the pressure drop inside the working area 0 to 500 MM WC with a least count of 1 MM WC. Pratham HVAC Solutions offers AEROSENSE/Delta magnehlic gauge with spec.

Curtains

Low Maintenance & Long life PVC antistatic dustproof curtains are supplied with the machine.

LCD Display Unit

Microprocessor-based controller fitted in the front side of the machine with three to four power points. The controller helps the user in maintaining the light, UV light timer & Blower speed. Blower Capacity 1500 to 2500 RPM in two to three numbers supplied according to the size of the Dispensing booth.

TECHNICAL SPECIFICATIONS: -
Air Velocity	90 ± 20 Cfm (Average)
Filtration Elements	Main Filters: HEPA Filter
Prefilter	Washable non-woven polyester fibers.
Filter Efficiency	Main Filters: 99.97 at 0.3 micron
Pre-filter:	90%, at 10 microns
Fine Filter	10 microns
Noise Level	< 65 dBA
HEPA Filter Brand	Fine Airsys/Airtech
Light Intensity	800-1000 Lux
Power Supply	220V Single Phase, 50 Hz.
WORKING SIZES (W X D X H)	2′ X 2′ X 6′, 3′ X 2′ X 6′, 3′ X 3′ X 6′ 4′ X 2′ X 6′, 4′ X 3′ X 6′, 4′ X 4′ X 6′ 6′ X 2′ X 6′, 6′ X 4′ X 6′, 6′ X 6′ X 6′

Every unit provides highly satisfactory performance and a competitive price guarantee. We are a known brand in the field of cleanroom equipment with the best prices in India. We offer 2 years of warranty with 10 years’ spare parts supply like HEPA FILTER, PRE FILTER, MOTOR.

STERILE GARMENT STORAGE CABINETS – GSC

Garment Storage Cabinet (GSC) is designed to provide ISO Class 5 (Class 100) particle-free work area to meet sterile garment storage needs which avoids any particulate accumulation. The work area is continuously supplied with positive pressure HEPA filtered re-circulated vertical/ horizontal airflow.

An integral HEPA filter and blower assembly provide a continuous wash of class 100 air over the garments.

TECHNICAL SPECIFICATIONS

SUCTION FILTER: -

• Filter Casing- AL flange type.
• Efficiency- 95% down to 5 microns (EU-4 Rating.)
• Media- Non-woven synthetic media sandwiched between two layers of High Density
• Polyethylene Mesh

SUPPLY FILTER: -

• Filter Casing- Aluminium factory extruded section.
• Efficiency- (99.997% down to 0.3 microns)
• Media- Micro fiberglass paper media (Imported) pleated along with Hot Melt Glue.

Features

• Material of Construction: Powder Coated MS / GI / SS 304 / SS 316 / SS 316 L
• Class 100 Compatible
• Two Stage filtration
• U.V Light with Hour Meter
• Heater with thermostat
• Interlocking arrangement to put off U.V. Light if either door opens.
• EU6- Pre-filter (95% down to 5 microns) for return air & fresh air intake
• EU13-HEPAFilter (99.97% down to 0.3 microns) at the supply position
• Statically & Dynamically balanced Motor-blower with suspension arrangement to reduce the noise level
• Differential Pressure Gauge: 1 No.
• SS304 Hanging Arrangement/ SS304 Removable Shelves
• SS304 doors with double-walled flush glass view panels
• ON/OFF Switches
• PAO Test Port
• 5/15 Amp Switch Socket for external equipment
• PU Caster wheels for easy movement
• Leg levellers in SS304

BLOWER MOTOR ASSEMBLY

• Electric Motor-double ended shaft, Single phase, 240 volts, 50Hz.
• Impellers-Aluminium, statically & dynamically balanced, forward curve type.
• Blower casings- AL / GI / MS, centrifugal type.

ACCESSORIES

• Magnehelic pressure gauge for checking the pressure drop across the supply Minipleat HEPA
• Filters. Range- 0 TO 25 / 50 mm of WC.
• Hour meter connected to UV light.
• PU caster with S.S. body and front lockable type wheel.
• S.S.304 levelers for height adjustment.
• Infra-Red light (Optional)

ELECTRICALS

• Feather touch ON/OFF switches for b/w motor, tube light, UV light & aux. socket with light
• Indication.
• LED light & UV light along with Hour meter.
• Three-pin top along with connection cable.

OPTIONAL ACCESSORIES

• A wide range of configurations to suit any containment application
• Blower tripping alarms (audible and visible)
• Velocity display with alarms (audible and visible)
• Filter blocked alarms (audible and visible)
• Explosion-proof electrics for Flame-proof applications

OPERATING CONDITIONS

• Air cleanliness: ISO Class 5 (ISO 14644-1:1999 (E))
• Air Velocities: 0.45 ± 0.05 MPS
• Air Flow: Vertical/Horizontal-Re-circulatory (Based on application)
• Noise Level: Less than 67 dB
• Vibration Level: Minimum
• Power Supply: 230V AC 1- Ø 50HZ

BIOSAFTEY CABINETS

The biosafety cabinet has been designed to provide personnel, environment, and protection. Airflow is drawn around the operators into the front grille of the cabinets, which provides protection. We are manufacturers and suppliers of biosafety cabinets in Mumbai, India.

Biosafety cabinets are bounded, expressed laboratory workspace area plan to protect the users and nearby environments from pathogens.

BIOSAFETY CABINETS ARE DIVIDED INTO THREE CLASSES:

• Class I: provide safety to the users and nearby environments.
• Class II: There are more differences like divided into four types A1, A2, B1 & B2.
• Class III: It’s also known as glove box, offers maximum protection.

OPERATING CONDITIONS

• Air cleanliness: ISO Class 5 (ISO 14644-1:1999 (E))
• Air Velocity: 0.44 ± 0.06mps
• Air flowing: Vertically Re-circulatory
• Vibration Levels: Min
• BSC can also be customized as per the client’s requirements

ACCESSORIES

• Gas cock / Air-cock
• Hour meter connected to UV light.
• PU caster with SS body and front lockable type wheel.
• S.S.304 height levelers.

ELECTRICALS

• 40w, LED light
• 30w, UV light along with an Hour meter.
• 6/16 Amps, Aux. socket with S.S. cover plate.
• 16 Amps. Three-pin top along with connection cable.

OPTION AND ACCESSORY

• PLC-based HMI Control System
• U.V. Light with Hour Meter
• SS 304 Air/Gas Cock.
• Night Mode Operations
• Once through Systems i.e.,100 % Exhaust
• Transferring hatch for materials movements
• PLC-based Controlling Systems
• Safe changed Bag in/out arrangement for filter

Laminar Airflow (LAF)

Laminar Flow Cabinets create particle-free working environments by projecting air through a filtration system and exhausting it across a work surface in a laminar or uni-directional air stream. They provide an excellent clean air environment for a number of laboratory requirements.

• Vertical Laminar Flow Cabinets
• Horizontal Laminar Flow Cabinets
• Laminar Flow Cabinets and Hoods
• Laminar Flow Benches and Booths

General Specifications

• Triple Stage filtration
• EU4 -Prefilters (90% down to 10 micron)
• EU7 – Intermediate Filter (95% down to 3 micron)
• EU14 – HEPA Filter – Supply / Exhaust (99.999% down to 0.3 micron)
• Statically & Dynamically balanced Motor blower with suspension or EC fan arrangement to reduce the noise level.
• Double skin puff-filled side panels.
• Horizontal internal Covings at base
• Fluorescent Lights with Milky White Diffuser
• Differential Pressure Gauges: 3 Nos
• ON/OFF Switches • Clean Down Timer with Operation HOLD indicator
• DOP Test Port5/15 Amp Switch Socket for external equipment

OPERATION THEATER LAF

Based on the experience, Pratham HVAC Solutions is contributing to the improvement of Hospital areas and reducing the risk of infection by designing and Commissioning the Laminar Airflow systems.

The Laminar airflow with HEPA Filter creates an extremely homogeneous laminar flow with very little turbulence. Any bacteria, viruses, or dust particles are extracted directly before the air enters the area. This means that the operating area is completely isolated within the surrounding room, effectively preventing any contamination by bacteria or virus-laden air. The low degree of turbulence also provides a pleasant working environment for medical personnel.

Every surgery requires different protection levels depending on the type of surgery. Protection of the patient, materials, and instruments needed for the surgery can be done with different types of laminar flow systems. Therefore, Pratham HVAC Solutions has developed several types of flow systems.

Our range of OT Laminar Airflow is made of Stainless steel 304, GI/Aluminium Powder Coated, and is designed as per NABH Guidelines.

AIR SHOWER

Air Showers are installed between change areas and classified rooms or between lower and higher-grade classification rooms in cleanrooms and controlled environments.

• Available in one-person, two-person, or 4-person configurations.
• 100% recirculatory. Air is discharged via high-velocity discharge nozzles and recirculated at a low level back to the fan and filter section within the shower.
• Internal LED Lighting providing illumination of 500 Lux.
• Interlocked doors with emergency override
• HEPA filtration with 99.997% efficiency at 0.5 micron
• Dedicated PLC controller with adjustable timer function.
• Available connection to client Fire Alarm and BMS
• Easy to replace G4 pre-filters and H14 HEPA filters
• Emergency Stop button installed and connection available for alarm sounder/beacon.