Used Safety Contactor for sale (10,532)

Condition: like new (used), Coil: 24VDC 3n/01n/c Iiodpfoytp H Eex Acfef Application: Safety circuit Width: 90 mm Height: 87 mm Depth: 120 mm Weight: 411 g Condition: Like new

Condition: like new (used), Coil: 24.0V AC / 5.5VA 50-60Hz Area of application: Safety circuit Width: 90 mm Height: 87 mm Depth: 120 mm Weight: 504 g Condition: Like new Isdpfx Ajytpi Hocfjif

Condition: like new (used), Coil: 24.0 VDC / 4.5W Application: Safety circuit Width: 45 mm Iedpfx Acsytr Avefjif Height: 87 mm Depth: 120 mm Weight: 364 g

Condition: like new (used), Coil: 24VDC Application: Safety circuit Width: 90 mm Iijdoytprbopfx Acfsf Height: 87 mm Depth: 120 mm Weight: 515 g Condition: Like new

Condition: like new (used), Coil: 24V AC/DC 3.0VA 1.5W 50-60Hz 1) ID No.: 774059826328 2) ID No.: 774059825212 Area of application: Safety circuit Width: 22 mm Height: 87 mm Iijdpsyt E Dmofx Acfof Depth: 120 mm Weight: 214 g

Condition: good (used), Price plus VAT. This package includes: Ijdpsg S Uxmjfx Acfoif 1 x Tegometall push-through safety bar, 2,700 mm Manufacturer: Tegometall Condition: used, good condition Length: 2,700 mm Color: yellow Mounting: for hanging

Condition: used, This listing is for the Dasit Biopharma Faster SafeFAST Classic 209D Microbiological safety cabinet The unit is in full working condition and is ready for immediate use Overview & Compliance Suitable for EN 12469:2000 (EU) and NSF/ANSI 49 (US) standard compliance, the SafeFAST Classic 209 D provides triple protection (user, product, environment) via Class II vertical laminar airflow containment  Airflow: ~70% is recirculated through an H14 HEPA/ULPA filter, ~30% is exhausted via a second H14 HEPA filter  Iijdpfexhftcsx Acfjf Key Features Construction: Exterior in epoxy‑powder‑coated steel; rear wall meets EN12469 cleanability criteria; segmented work tray of AISI 304L stainless steel, removable for cleaning/autoclaving  Electrical safety sash: Motorised vertical sliding front sash, with standard working aperture of 200 mm (max 490 mm), also hinged for deep cleaning  Airflow & Filtration System: Single or dual centrifugal fans; static negative pressure design ensures all contaminated air is drawn into HEPA filters; avoids positive pressure in any chamber  Control & Safety Systems Microprocessor-based control (ECS™ or similar): Real-time monitoring via rear-lit LCD and touch keyboard, displaying airflow status, filter condition, fan status, and sash position; allows safe operation and data logging  Audio‑visual alarms: Alert the user in case of deviations in airflow velocity, sash mis-position, clogged filter, fan issues, or power loss 

Condition: used, This listing is for the Envair Technology B102 Microbiological Safety Cabinet + Mobile Stand The unit is in full working condition and is ready for immediate use Overview: Envair Technology Bio 2 Essential (B102 Series) Certifications & Intended Use Fully compliant with BS EN 12469:2000, ensuring reliable biosafety standards. Envair Technology Suitable for handling biological agents up to ACDP Hazard Group 3, provided proper laboratory siting. Ideal for cell culture and related work. Envair Technology Design & Construction Width: 1200 mm. External body: Constructed from white polyester-coated mild steel. Work zone: Lined in 304-grade stainless steel with side-glazed panels. Work surface: Removable and dished, crafted from 316-grade stainless steel. Envair Technology Airflow & Filtration Offers recirculating or ducted configurations. Equipped with downflow HEPA filtration (Class H-14, ≥ 99.995% efficiency) according to EN 1822‑1 standards. Lighting & Fans Illuminated using low-energy LED lighting mounted external to the work area. Ventilation is powered by independent EC-type energy-efficient fans, both above and below the working zone. Envair Technology Control Interface Features an integrated positive-touch membrane control panel positioned above the work area, with animated display feedback. Envair Technology Compliance & Standards In addition to BS EN 12469:2000 and HEPA filter standards, the Bio 2 Essential cabinets also meet: IEC 61010‑1:2010 Iijdpjxhfpksfx Acfsf Air quality standards: ISO Class 5 (BS EN ISO 14644‑1:2015) and EU GMP Grade A.

Condition: used, This listing is for the CAS Biomat 2 Microbiological Safety Cabinet with Stand The unit is in full working condition and is ready for immediate use The BioMat 2 is a Class II microbiological safety cabinet also known as a biosafety cabinet designed to protect the user, the sample (or product), and the environment during handling of potentially hazardous or sterile biological materials Key Features & Capabilities Protection & Compliance Meets the European standard EN 12469:2000 for microbiological safety cabinets It shields both the operator and the product through an inward air curtain (front sash) and sterile downflow over the work surface. Aerosols and contaminants are filtered through HEPA filters before being exhausted or recirculated Construction & Safety Built with a 1.5 mm mild steel outer shell and 304 stainless steel interior. Side panels are made from 5 mm UV-resistant toughened glass Include safety alarms, airflow monitoring, and robust sealing under negative pressure to prevent leaks Iedpfx Aexhfkbscfoif

Condition: new, SIEMENS contactor 1st type - 3 TF 46 - 3 pieces 2nd type - 3 TF 48 - 1 piece 3rd type - 3 TF 54 - 1 piece Ijdpfx Asu U Ulgscfeif 4th type - 3 RT 1054 - 1 piece 5. type - 3 RT 1075 - piece 6. LC 1D 65008 - 1 piece

Condition: new, Year of construction: 2022, SICK S30B-3011BA Safety Laser Scanner Features Design sensor without system connector Indoor application area Protective field range 3 m Warning field range 8 m (at 15 % remission) Distance measuring range 30 m Type of field set Triple field sets Number of field sets 1 Iiodpfxspudtls Acfsf Number of fields 3 Number of monitoring cases 1 Scanning angle 270 Resolution (configurable) 30 mm, 40 mm, 50 mm, 70 mm, 150 mm Angle resolution 0.5° Response time 80 ms 1) Protective field allowance 100 mm Number of multiple evaluations 2 ... 16, configurable Delay of automatic reset 2 s ... 60 s, configurable Safety characteristics Type 3 (IEC 61496) Safety integrity level SIL2 (IEC 61508) Category Category 3 (EN ISO 13849) Performance Level PL d (EN ISO 13849) PFHD (mean probability of dangerous failure per hour) 8.0 x 10-8 TM (service life) 20 years (EN ISO 13849) Function Restart interlock ✔ Contactor monitoring (EDM) ✔ Multiple evaluation ✔ Contour as reference ✔ Integrated configuration memory ✔ Measurement data output Measurement data output Via RS-422 Secure SICK device communication via EFI ✔ Connection type Connection type System connector with or without connecting cable Universal I/Os 5 1) Inputs Contactor monitoring (EDM) 1 2) Reset/restart 1 2) Stand-by 1 Outputs OSSD pairs 1 Signal outputs 3 3) Type of configuration PC with CDS (configuration and diagnostics software) Configuration and diagnostics interface RS-232 Transmission rate 38.4 kBaud Data interface RS-422 Transmission rate ≤ 500 kBaud Secure SICK device communication via EFI Transmission rate ≤ 500 kBaud Cable length ≤ 50 m Conductor cross-section 0.22 mm² 1) Freely programmable, e.g. contactor monitoring input, reset input, contamination warning, reset required. 2) Availability depends on configuration of universal I/Os. 3) Freely programmable, e.g. warning field, contamination, reset required. Protection class III (EN 50178) EN 60950 Supply voltage Uv 24 V DC (16.8 V DC ... 30 V DC) Current consumption ≤ 0.33 A 1) ≤ 1,7 A 2) Outputs Safety outputs (OSSDs) 2 x 250 mA Signaling outputs 3 x 100 mA 3) 1) At 24 V DC without output load. 2) At 24 V DC with maximum output load. 3) Freely programmable, e.g. warning field, contamination, reset required. Item condition: new, from stock clearance (Without original packaging) Year of manufacture 2022 Financing through our bank is also possible. komplett-konzept.leasingo.de More scanners - new and used - you will find in our store! International shipping costs on request!

Condition: new, Year of construction: 2017, SICK S30B-3011BA Safety Laser Scanner Features Design sensor without system connector Indoor application area Protective field range 3 m Warning field range 8 m (at 15 % remission) Distance measuring range 30 m Type of field set Triple field sets Number of field sets 1 Number of fields 3 Number of monitoring cases 1 Scanning angle 270 Resolution (configurable) 30 mm, 40 mm, 50 mm, 70 mm, 150 mm Angle resolution 0.5° Response time 80 ms 1) Protective field allowance 100 mm Number of multiple evaluations 2 ... 16, configurable Delay of automatic reset 2 s ... 60 s, configurable Safety characteristics Type 3 (IEC 61496) Safety integrity level SIL2 (IEC 61508) Category Category 3 (EN ISO 13849) Performance Level PL d (EN ISO 13849) PFHD (mean probability of dangerous failure per hour) 8.0 x 10-8 TM (service life) 20 years (EN ISO 13849) Function Restart interlock ✔ Contactor monitoring (EDM) ✔ Multiple evaluation ✔ Iisdpjpudqxefx Acfef Contour as reference ✔ Integrated configuration memory ✔ Measurement data output Measurement data output Via RS-422 Secure SICK device communication via EFI ✔ Connection type Connection type System connector with or without connecting cable Universal I/Os 5 1) Inputs Contactor monitoring (EDM) 1 2) Reset/restart 1 2) Stand-by 1 Outputs OSSD pairs 1 Signal outputs 3 3) Type of configuration PC with CDS (configuration and diagnostics software) Configuration and diagnostics interface RS-232 Transmission rate 38.4 kBaud Data interface RS-422 Transmission rate ≤ 500 kBaud Secure SICK device communication via EFI Transmission rate ≤ 500 kBaud Cable length ≤ 50 m Conductor cross-section 0.22 mm² 1) Freely programmable, e.g. contactor monitoring input, reset input, contamination warning, reset required. 2) Availability depends on configuration of universal I/Os. 3) Freely programmable, e.g. warning field, contamination, reset required. Protection class III (EN 50178) EN 60950 Supply voltage Uv 24 V DC (16.8 V DC ... 30 V DC) Current consumption ≤ 0.33 A 1) ≤ 1,7 A 2) Outputs Safety outputs (OSSDs) 2 x 250 mA Signaling outputs 3 x 100 mA 3) 1) At 24 V DC without output load. 2) At 24 V DC with maximum output load. 3) Freely programmable, e.g. warning field, contamination, reset required. Item condition: new, from stock liquidation (Without original packaging). Year of manufacture 2017 Financing through our bank is also possible. komplett-konzept.leasingo.de More scanners - new and used - you can find in our store! International shipping costs on request!

Condition: excellent (used), Schleich GLP2-E safety tester, insulation tester GLP2E tester Item condition: Used, in perfect condition SHELF-B-PD(BOR) Ijdpsivd I Ssfx Acfeif You can find more testers - new and used - in our store! International shipping costs on request!

Condition: excellent (used), Nuaire NU-440-600E fume cupboard The Nuaire 440-600 is ergonomically designed for user comfort and offers users more knee room. The Nuaire 440-600 has a unique sealed construction and True Laminar AirFlow HEPA filtration system. The 440-600 biosafety cabinet features the advanced AirFlow Control electronic system with precise programmable controls for a safe, reliable environment. Specifications: Voltage: 230V, 50Hz Current: 11A Downflow 38 M/S Inflow: 46 M/S Included: -2x 230 volt socket -fluorescent lamps Iedpfoirtxbox Acfsif Outside dimensions (W) x (D) x (H): 200 x 85 x 150cm Item condition: used More items - new and used - you will find in our store! International shipping costs on request!

Year of construction: 2001, condition: excellent (used), BDK S-1200 Laminar-Flow Safety Cabinet Operating principle The safety cabinet is a laboratory unit in which a largely low-turbulence (laminar) displacement flow prevails in the working chamber. The air flowing through the working chamber, as well as the exhaust air, is cleaned by a high-performance HEPA filter. Iiodpsl Smggsfx Acfof Scope of performance and equipment - Model design The safety cabinet is manufactured in three different sizes, as BDK-S 1200, 1500 and 1800. - Air monitoring The air flow velocity in the recirculation (downflow work area) and exhaust (inflow exhaust air) areas is monitored with flow probes. Any faults that occur are indicated by a control lamp and signal horn. - Inspection pane monitoring The viewing pane made of laminated safety glass is equipped with a weight compensation and can be moved manually very smoothly and steplessly. If the viewing window is not in the working position (opening greater than 190 mm), this is indicated on the display and by a signal horn. - Control panel All switching elements required for operation, membrane keypad, signal horn and indicator lights, as well as the display for indicating the various operating states are arranged in the control panel. - Microprocessor control The microprocessor control is self-monitoring and permanently displays the airflow speed. - Unit depth< 800 mm (840 mm) Due to the low unit depth, the safety cabinet fits through all common laboratory doors. - Housing design For safety reasons, the housing is made of 1.5 mm thick Zincor sheet metal with welded pressure area. - Contamination areas All contamination areas are flushed with negative pressure. - low sound emissions - glare-free work area illumination - joint-free working area made of stainless steel Manufacturer: BDK Model: S-1200 Type: Laminar-Flow safety workbench Year of manufacture: 2001 new price: 6.500 € Financing through our bank is also possible. komplett-konzept.leasingo.de Further articles - new and used - you will find in our store! International shipping costs on request!

Condition: excellent (used), Safetech ST-Alarm-V2 Safety Weighing Cabinet The latest generation of safety weighing cabinets, the ST1 series, is characterized design, especially with regard to personal protection for work with toxic and active Iisdpfxeiuxndo Acfsf work with toxic and active substances. All cabins are equipped with an alarm system and two alarm sensors. The sensors measure the flow velocity on the right and left side of the work opening. As soon as the flow velocity falls below a limit value, both an acoustic and a visual alarm are triggered. Key benefits at a glance: Unique directional airflow guidance through BAFFLE technology. (patent pending) Virtually turbulence-free balance environment Suitable for the latest generation of microbalances Cabinet design also allows pipette handling Alarm system with two sensors and data logging Vibration-free due to independent filter unit Easy to clean due to removable back panel Without filtration components Further safety weighing cabinets - new and used - you will find in our store! International shipping costs on request!

Condition: used, This listing is for a Envair Safety Cabinet Iodexzgv Sjpfx Acfjif

Condition: used, This listing is for a ENVAIR Safe Comfort Plus Safety Cabinet Ijdpfx Aoxzgzzscfoif

Condition: used, This listing is for the Big Neat. F3-XIT Safety Cabinet The unit is in full working condition and is ready for immediate use The Bigneat F3‑XIT is a benchtop powder weighing safety cabinet manufactured by Bigneat, tailored to protect operators from exposure to dust and particulates while handling and weighing fine powders. It features a compact footprint and excellent visibility through its acrylic enclosure, ideal for precision work. MedicalExpo DirectIndustry Key Features: Iiodpfxjxhff So Acfjf Compact design with great all-around visibility, available in two access styles: F3‑XIT‑D: Hinged access flap. F3‑XIT‑S: Corner “tear drop” access. Recirculating HEPA filtration, including a pre-filter and HEPA filter that removes particles down to 0.3 µm with 99.997% efficiency, returning clean air back into the lab. Balanced airflow: Pre-set to a capture velocity of approximately 0.35 m/s, proven to offer both effective containment and stable weighing condition

Condition: used, This listing is for the Big Neat BC1506 Safety Cabinet Ijdpfx Acsyu Ulpsfjif The unit is in full working condition and is ready for immediate use The Bigneat BC1506 is a versatile, high-performance ductless safety cabinet designed to provide exceptional protection from hazardous fumes, vapours, and particulates. Built with Bigneat’s signature filtration technology, this unit offers a flexible and cost-effective alternative to traditional ducted fume hoods, making it an ideal choice for labs with limited infrastructure. Key Features & Benefits: Advanced Carbon & HEPA Filtration: Tailored to your specific chemical or biological needs, ensuring recirculated air is purified to the highest safety standards. Ductless Portability: Because it requires no external venting, the BC1506 can be easily moved and installed anywhere in your facility, saving on expensive HVAC costs. Total Visibility: The 360-degree clear acrylic panels provide maximum light and an unobstructed view of the workspace from all angles. Energy Efficient: Features low-power fans and intelligent airflow monitoring that ensures maximum containment with minimal energy consumption. Durable & Chemical Resistant: Constructed from high-quality materials designed to withstand spills and frequent cleaning in busy laboratory environments.

Condition: used, This listing is for a CAS BioMAT Class 2 Microbiological Safety Cabinet. The unit is in full working condition and is ready for immediate release. The BioMAT 2 combines decades of expertise in containment design to offer a range of Class 2 microbiological safety cabinets that prioritize safety, ease of use, and energy efficiency. It provides protection for operators and products while handling biological agents up to Hazard Group 3. Key Features: - User-Friendly Interface: Equipped with a 10cm x 6cm TFT touchscreen displaying real-time cabinet operations and an animated airflow diagram. Intuitive controls with crystal-clear iconography simplify functionality, while a four-digit password ensures security. Iedpoxxyctjfx Acfsif - Energy Efficiency: Features energy-efficient EC fan technology and low-loss filters, consuming only 140W under typical operational performance (0.6 m/sec inflow and 0.35 m/sec downflow). The set-back mode reduces energy usage by automatically adjusting settings when the cabinet is unattended. - Safety Mechanisms: Full-width LED lighting provides clear indications of any airflow issues, supported by audible alarms and large red LED alerts for malfunctions. The animated airflow diagram gives instant feedback on cabinet status. - Quiet Operation: Designed with EC fans and noise reduction technology, the typical noise level is just 49dBA for the 1200mm models, ensuring a comfortable work environment. - Sustainability: The BioMAT 2 has achieved CarbonNeutral® product certification, contributing to laboratory carbon reduction goals. Product Specifications: - Construction: - Cabinet: 1.5mm mild steel - Inner Liner: Grade 304 stainless steel - Side Windows: 5mm UV-resistant toughened glass - Front Visor Options: - Fixed 200mm aperture with a night door for fumigation. - Aerosol-tight motorized sliding sash with anti-trap reverse function (BioMAT 2-S2). Exhaust Options: - Standard Exhaust: Single HEPA filter with anti-blowback damper. - Thimble Exhaust: Double HEPA filters for enhanced safety. - Recirculation: Double HEPA filters with options for vertical or horizontal air discharge. - Worktrays: Made from grade 316 stainless steel, available in single or divided sections to meet user needs. - Support Stands: Options include fixed height, manually adjustable, or fully DDA-compliant motorized stands. Applications - The BioMAT 2 is ideally suited for laboratories handling biological agents and provides a flexible design tailored to specific laboratory requirements.

Condition: used, This listing is for the ICN Biomedicals Flow Gelaire BSB Class 2 Safety Cabinet The unit is in full working condition and is ready for immediate use Iodpfx Aexhfpqecfeif Gelaire Class II Biological Safety Cabinets These are widely used internationally and are known for their high safety, energy efficiency, and ergonomic design. Key features include: Airflow & Protection They employ part-recirculating laminar airflow and separate H14 HEPA systems for both supply and exhaust. The design ensures a consistent air barrier at the front opening and maintains sterile downflow inside, all within a biodynamic sealing system that uses negative pressure around any positive-pressure zones. Eco® Control System A smart microprocessor actively regulates airflow to compensate for filter loading, manage power consumption, and maintain safe operational flow rates. Monitoring & Safety Alarms Cabinets offer real-time display of airflow velocities, internal and external temperatures, operation hours, filter life, and fan power factor. Audible and visual alerts warn of airflow deviations or other malfunctions. Standby power-saving modes and “blackout” reporting (in the event of power failure) are included. Construction & Ergonomics The housing features antimicrobial powder-coat finish, and interior zones are stainless steel (Type 304 for work zones, Type 316 for the tray). Hinged or electric sash options (depending on model) and ISO-aligned ergonomic design, noise under 60 dB(A), and smooth operation are standard. Options & Accessories Available extras include gas and vacuum taps, splashproof power outlets, UV germicidal lamps, different exhaust configurations (top, left, right), adjustable stands, carbon exhaust filters, armrests, and fumigation seals.

Condition: used, This listing is introducing 8 No Envair Mobile Isolators of different specifications currently held in our stock The units are in full working condition and ready for immediate use Envair Mobile Isolator Envair Technology is a UK-based manufacturer specializing in clean air and containment solutions for the healthcare, biotechnology, and pharmaceutical industries. Their product range includes a variety of isolators designed to provide controlled environments for handling hazardous substances, ensuring both operator and product safety. Applications Envair isolators are widely used in a variety of applications including Hospital Pharmacies: For preparation of TPN, CIVAS, and aseptic dispensing. Pharmaceutical Laboratories: Handling of HPAPIs and sterile compounding. Sterility Testing: Secure, controlled environments for product testing. R&D Facilities: Safe containment during experimental or early-stage developmen Key Features of Envair Isolators Positive and Negative Pressure Models: Envair offers both positive pressure isolators protect the product from contamination and negative pressure isolators to protect the operator from hazardous substances Compliance with GMP Standards: Many Envair isolators meet EU GMP Grade A and ISO 5 classifications, ensuring sterile, controlled environments. Customizable Designs: Envair provides bespoke solutions tailored to specific client needs, including unique dimensions and technical requirements. Advanced Containment Technology: Isolators are equipped with automated pressure decay leak tests, electromagnetic interlocks for transfer chambers, and integrated decontamination systems. User-Friendly Controls: Most units include intuitive touchscreen interfaces and PLC-based systems for simple and efficient operation. Growing Need for Containment with HPAPIs Demand for personalised medicines containing High Potent Active Pharmaceutical Ingredients (HPAPIs)—particularly in newer super-potent oncology, cardiovascular, and diabetes treatments—is increasing rapidly. These medicines often require shorter turnaround times, forcing pharmaceutical process manufacturers to develop faster, more agile workflows. In such high-risk, high-value settings, a GMP-compliant environment is not optional—it’s critical. It’s easy to overlook the fact that the people developing, manufacturing, and dispensing these complex drugs are at risk of exposure to harmful, sometimes lethal, compounds. Their safety is paramount, given the essential role they play in maintaining a reliable supply of advanced therapeutics. Expertise in HPAPI Handling for CMOs & CDMOs Envair has specialist expertise in helping Contract Manufacturing Organisations (CMOs) and Contract Development and Manufacturing Organisations (CDMOs) safely handle HPAPIs—even within existing non-contained facilities. Their isolator systems are designed, manufactured, and installed to meet rigorous containment performance levels below 1μg/m³ (OEB 5). Each system is custom-engineered for the specific site and process step—whether it’s weighing, mixing, milling, spray drying, or packaging. Iisdpfx Ajxv Dhbecfjf Applications Hospital Pharmacies: For preparation of TPN, CIVAS, and aseptic dispensing. Pharmaceutical Laboratories: Handling of HPAPIs and sterile compounding. Sterility Testing: Secure, controlled environments for product testing. R&D Facilities: Safe containment during experimental or early-stage development

Condition: used, This listing is for the Semper Safehood 120 The unit is in full working condition and is ready for immediate uses Dimensions 1200mm L x 710mm D x 1200mm Ht The Semper Safehood 120 is a robust and reliable safety cabinet engineered to provide a secure environment for handling hazardous chemicals, powders, and biological agents. Combining high-efficiency filtration with ergonomic design, the Safehood series is a staple for laboratories prioritizing operator safety without compromising on workflow efficiency. Key Features & Benefits: Isdjyu T H Sspfx Acfoif Advanced Containment: Specifically designed to capture and filter harmful vapors and aerosols, keeping the breathing zone of the operator clear and safe. Optimal Visibility: Features large transparent side panels and a clear front sash, ensuring the user has a full, unobstructed view of their delicate work. User-Centric Ergonomics: The spacious 120cm internal width provides ample room for equipment, while the low-noise operation reduces fatigue during extended use. Easy Maintenance: Built with smooth, chemically resistant surfaces that allow for rapid decontamination and easy cleaning between different applications. Reliable Monitoring: Includes built-in safety alarms and airflow monitoring to ensure the unit is always performing at peak protective levels.

Condition: used, This listing is for the Basair Laminair Flow P Range Safety Cabinet The unit is in full working condition and is ready for immediate use Ijdpfx Aoyu Titjcfeif Bassaire P-Range Laminar Flow Units are designed to provide an ultra-clean, particle-free environment to protect products, conforming to BSEN ISO 14644 (ISO Class 4 & 5) standards. Constructed from high-quality powder-coated white carbon steel or stainless steel, these units offer reliable vertical laminar airflow and are suitable for laboratories requiring strict contamination control