A chemical fume hood protects lab workers by venting solvent fumes and other harmful gases out of the laboratory and the indoor room air. Air flows into the cabinet beneath a movable sash at the front, and carries fumes up and out through the vent. Bypass fume hoods have an additional air intake above the sash which minimizes disruption of air flow in the work area due to movements in and out of the hood. Options in chemical fume cabinets now include energy efficient low flow fume hoods and hoods with an outdoor air intake (also known as auxiliary fume hoods) to avoid venting conditioned room air. Chemical fume hoods designed for specialized uses such as working with radioisotopes or perchloric acid are also available.
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Ductless Fume Hoods
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| Company | TopAir Sytems Inc. | TopAir Sytems Inc. | TopAir Sytems Inc. | TopAir Sytems Inc. |
| Item | Weighing Station | Ductless Fume Hood- Pro EN-14175 / ASHRAE 110 | Hybrid – Laminar Airflow Fume Hoods | Polypropylene Fume Hood – Washdown |
| Catalog Number | CF-060-PP-W / CF-090-PP-W / CF-120-PP-W / CF-150-PP-W / CF-180-PP-W | CF-060-PP / CF-090-PP / CF-120-PP / CF-150-PP / CF-180-PP | FH-120-HCV / FH-150-HVC / FH-180-HVC / FH-200-HVC / FH-250-HVC | FH-120-WD / FH-150-WD / FH-180-WD / FH-200-WD / FH-250-WD |
| Price | | | | |
| Size(s) | 23.62, 35.4, 47.24, 59, 70.8 in | 23.62, 35.4, 47.24, 59, and 70.8 in | Varies with model | Varies with model |
| Type | Ductless Fume Hood | Ductless Fume Hood | Fume Cupboard | Fume Cupboard |
| Exterior Dimensions | Varies with model | (WxDxH) 600 x 750 x 1223 mm23.62 x 29.5 x 48” to 1800 x 750 x 1223 mm 70.8 x 29.5 x 48” | (WxDxH) 1200 x 850 x 2320 mm to 2500 x 850 x 2320 mm (47.3 x 33.4 x 91.3 in. to 98.4 x 33.4 x 91.3 in.) | (WxDxH) 1200 x 980 x 2370 mm to 2500 x 980 x 2370 mm (47.3 x 38.6 x 93.3 in. to 98.4 x 38.6 x 93.3 in.) |
| Depth | Inquire | Inquire | 23.6 to 24.8 in. | 24.8 in. |
| Description | Topair’s Weighing Station is designed for weighing powders and chemicals, and provides precise weighing data with up to 4 decimal places.
It also provides a safe work environment for lab staff working with acids and harsh chemicals.
The electrical and mechanical components are manufactured by leading Topair’s Weighing Station is designed for weighing powders and chemicals, and provides precise weighing data with up to 4 decimal places.
It also provides a safe work environment for lab staff working with acids and harsh chemicals.
The electrical and mechanical components are manufactured by leading global companies, such as AAF USA. The products are EN-14175 / CE / ASHRAE 110-1995 certified.
Advanced Operation System- Color 5" touch screen
- 10-speed fan
- Hour counter for filter
- Filter replacement alarm
TopAir’s weighing stations can be customized to the requirements of each client.
Features:Provides precise weighing data – up to 4 decimal placesPolypropylene structure with high chemical resistance7” control touch screen controlling lighting and powerBuilt-in sealed polypropylene worktop or choice of epoxy, stainless steel, ceramic, TrespaTempered glass sliding front windowHigh efficiency, quiet EC fanEco-friendly, cost-effective 800 LUX LED lighting separated from the work areaWind speed at 0.5±0.1 m/s, 100±20 FPMHEPA filter installedConvenient front access for filter replacementAir flow alarmOptional: No worktop, with independent table or optical table, standXL model with 2 internal filters is also availableEN-14175 / CE / ASHRAE 110-1995 certified... Read More | TopAir’s polypropylene Ductless Fume Hood provides a safe environment for lab staff working with a variety of chemicals.
Our Ductless Fume Hood offers an air velocity display and alarm with a full Variable Air Volume (VAV) automatic speed adjustment to meet 100±20 fpm (0.5±0.1 m/s). This model is TopAir’s polypropylene Ductless Fume Hood provides a safe environment for lab staff working with a variety of chemicals.
Our Ductless Fume Hood offers an air velocity display and alarm with a full Variable Air Volume (VAV) automatic speed adjustment to meet 100±20 fpm (0.5±0.1 m/s). This model is also equipped with a chemical VOC sensor and alarm to detect high levels of volatile compounds present in the filter for extra safety.
TopAir’s Ductless Fume Hoods can be customized to meet size requirements as needed.
Structure:- 8 mm welded polypropylene with high chemical resistance
- Built-in sealed polypropylene worktop or choice of epoxy, stainless steel, ceramic, or Trespa high pressure compact laminates (HPLs)
- 5 mm safety front glass window with sliding front sash with counterweight
- Side windows for better visibility
Features:- 10.1” color touchscreen display
- VAV with air flow alarm and display
- VOC sensor and alarm
- Chamber alert light (red) for critical alarms
- High efficiency quiet ECM fan
- 800 lux LED lighting separated from the work area
- Adjustable air velocity 100±20 fpm (0.5 ± 0.1 m/s)
- Convenient front access for filter replacement
- Variety of HEPA filters, carbon filters, and pre-filters
- 10” (250 mm) exhaust point collar for connection to external exhaust
- Optional: metal stand or polypropylene base cabinet
- Certifications: EN-14175 / ASHRAE 110-1995, CE
... Read More | TopAir’s Laminar Airflow Fume Hoods offer clean bench functionality. They are made of high-quality non-corrosive polypropylene with excellent chemical resistance.
The product is equipped with a dual airflow system: - Supply system with a pre-filter, HEPA filter and a fan that creates laminar down-
TopAir’s Laminar Airflow Fume Hoods offer clean bench functionality. They are made of high-quality non-corrosive polypropylene with excellent chemical resistance.
The product is equipped with a dual airflow system: - Supply system with a pre-filter, HEPA filter and a fan that creates laminar down-flow towards the working area.
- Exhaust system that needs to be connected to a ducting system with an outdoor fan. Both inflow and downflow (100% of the air) are channeled to the exhaust system.
Structure: - 8 mm welded polypropylene with high chemical resistance
- Polypropylene worktop – stainless steel optional.
- 5 mm front safety glass window with counterweight system
- Lower vented base cabinet made of polypropylene
- Air ventilation areas include perforations on the front and side area of the worktop and the grille at the rear.
Features: - 10.1” color touchscreen display
- VAV with air flow alarm and display
- Automatic laminar air velocity
- inflow is affected by the lab extracting system.
- automatic shutdown system for the down-flow when inflow system fails
- Clean bench functionality
- Cleanliness level – Class 100/ISO 5
- 800 lux LED lighting separated from the work area
- Includes polypropylene lower base cabinet
- Optional: sink/water tap/gas tap/ vacuum tap/electric sockets
- CE certified
... Read More | TopAir’s Polypropylene Fume Hood – Washdown includes water sprinklers that allow complete and effective rinsing of the hood’s back space while collecting residue of mineral accumulation. The hood is designed for work with perchloric acid; rinses after each session is recommended. The polypropylene TopAir’s Polypropylene Fume Hood – Washdown includes water sprinklers that allow complete and effective rinsing of the hood’s back space while collecting residue of mineral accumulation. The hood is designed for work with perchloric acid; rinses after each session is recommended. The polypropylene fume hoods are made of high-quality non-corrosive polypropylene with excellent chemical resistance. The fume hoods protect laboratory staff from noxious fumes released by acids, dangerous gas and organic solvents — materials and acids that regular steel hoods may not withstand. The hoods are designed for work with heavy chemicals and have been independently tested and CE certified.
Structure: - 8 mm welded polypropylene with high chemical resistance
- Polypropylene worktop – optional materials include stainless steel, ceramic, epoxy, and HPL.
- 5 mm front safety glass window with counterweight system
- Lower vented base cabinet made of polypropylene
- Air ventilation from both the top and rear panel
Features: - Washdown functionality
- Spray nozzles
- Solenoid tap for washdown
- Draining port
- Easy access for maintenance and repairs
- 7” color touch screen controlling lighting and power outlets
- Optional upgrade to control systems:
- 7“screen with AFA system – Air velocity display and Alarm
- 10.1” VAV – Automatic air velocity control (installed and include VFD), temp & humidity display
- Energy saver 10.1” VAV+Active, with automatic sash motion and proximity sensing system that dramatically reduces energy costs
- 800 lux LED lighting separated from the work area (option for explosion proof light)
- CE certified
... Read More |
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