Esco Ascent™ Opti (SPD) ductless fume hood offers excellent containment and ergonomic features at a great value. Eight different selection of Nanocarb™ Carbon Filters, to cater to specific chemical groups. Ductless fume hoods are designed to protect personnel by filtering out dangerous fumes and vapors so that air can be safely recycled back into the work space in an energy-efficient way. MOC: Working Body: Body made with Polypropylene Work Platform: Granite Stone. This cleaner has been specially formulated for use on laboratory surfaces including, stainless steel, stone/composite bench tops and fume hood sashes. 9. Find My Store. A ducted hood, on the other hand, cannot be installed as ductless. Ductless fume hoods must have prominently posted signage informing operators and maintenance personnel on the allowable chemicals used in the hood, type and limitations of filters in place, filter change schedule, and a notice that the hood recirculates air in the room. DIY Projects & Ideas Project Calculators Installation & Services Specials & Offers. This is accomplished by drawing contaminates within the hood’s work area away from the user, so that inhalation and contact are minimized. 00 $189. Help keep your lab employees safe with a ductless fume hood and fume hood filters and other accessories from Grainger. Purair Basic ductless hoods are found in research laboratories, educational facilities, and forensic laboratories throughout the world and are designed to protect the user and the environment from hazardous vapors. Ideally, the new hood should be large enough to extend one inch. 68 - $480. Name and Email are required. Classroom Ductless Fume Hoods. Savings: $ 564. 4-0. . Next, cut two support beams to the overall length you decided on for the range hood (for me it was 16 inches). Cut two support beams to this width. Fume hoods are lined with various chemical resistant materials,. The objective of the filtration system is to reduce the levels of solids, gases, or vapors to that below the acceptable occupational exposure limit at the exhaust. LCD Touch screen control panel, easy to operate. A benefit of ductless fume hoods is that they are mobile, easy to install since they require no ductwork, and can be plugged into a 120 volt or 240 volt outlet. Polypropylene construction resists chemical vapors, and an onboard air speed meter monitors operation. 5 Year Warranty on all UL 1805 UniFlow Fume Hoods. By filtering the air, ductless fume. Country of Origin: Made in India. So after being inspired by the countless DIY fume hoods, like this one, he decided to try his hand at it. Ductless fume hoods pass contaminated air through filters before returning air to the room. Items 1 - 12 of 23. The exhaust fan is typically stationed at the top of the building and pulls air through the duct work connected to the hood and exhausts it into the atmosphere. Step 3: Drilling Holes. I talk about my homemade fume hood: the cost, type of materials, general design plan, and give a few tips. The pre-filter starts the process of capturing particles that are emitted by the chemicals used within the hood. FIltraCheck™ App for iPhone and Android to determine carbon filter type and. Step 6: Cut a Window in the Front Panel. The carbon filter is sized to fit the specified product model number and configured to optimize airflow across 100% of the filter surface area. 5 cm) round duct transition. HEMCO offers a complete line of UniFlow laboratory fume hoods. Wide. These employ multiple pre-filters, HEPA filters, activated carbon filtration, and a strong fan. Ductless Fume Hood is a viable alternative to conventional fume hoods. Paramount Ductless Enclosures are self-contained work stations, also known as ductless fume hoods, that use carbon filters to rid the laboratory of annoying or unsafe concentrations of organic solvents, formaldehyde, acid gases, ammonia, or radioisotopes. Indoor. Tags: Ductless Fume Hood Fume Hoods Health & Safety Product Focus. The mobile fume extractor / fume exhauster is an air purification system which can provide the partial high pure environment. A ductless fume hood can eliminate very high percentages of particulates and biological hazards to protect lab workers and the lab environment. View All 5. proof light, vertical sash and controls. Quality and safety cannot be assured in aftermarket or DIY replacement carbon filters. Ideal for general chemistry applications. . . Description. If the filters are not changed regularly, dangerous fumes and vapors will pass through and return to the work area posing a risk to workers and the laboratory. A fume hood is a ventilated enclosure used to control exposure to hazardous or odorous chemicals. The Captair Smart ductless fume hoods are specifically designed to safely protect users when handling chemicals or powders that pose an inhalation risk. Currently, two types. Ductless Technology: The Eco-Friendly Choice. Esco’s research scientists and engineers, working in con-Purair® Basic ductless fume hoods are designed to provide high level performance features at an affordable price. its all about airflow! Not only do you HAVE to have it. Typically used in locations where outside ventilation cannot suffice, a ductless fume hood is a necessity to eliminate high percentages of harmful contaminants to protect users. Unlike conventional fume hoods, ductless fume. Once the air is drawn in, it moves through a filter called the pre-filter. Description. All ductless fume hood replacement filters should be purchased from reputable manufacturers who comply with usage standards and other national/international guidelines for filter performance. This model is available in stainless steel, matte black, and matte white finishes, making it the best under-cabinet range hood to complement most kitchens. The Captair Smart 321 ductless fume hood is designed to protect users during applications that emit harmful vapors/chemical particles. Typically used in locations where outside ventilation cannot suffice, a ductless fume hood is a necessity to eliminate high percentages of harmful contaminants to protect users. Self-contained ductless enclosures allow safe handling of organic, formaldehyde, acid gas, sulphur compounds, or ammonia chemical fumes and vapours, as well as particulates. Cosmo COS-5MU30 30-Inch Under-Cabinet Range Hood. Due to the great variety of chemicals that might be used in a research setting, it is difficult to predict the effective. Products include cabinets suitable for biosafety applications and related documentation. Introduction Step 1: Precutting/Sizing The Materials. Many units are portable and may be moved from one location to the next with minimal down-time and without filter changes. 3DConfigure;. A fume hood is a ventilated enclosure used to control exposure to hazardous or odorous chemicals. The wash should go into a waste bottle. A vapor adsorbing ductless fume hood is a self-contained enclosure that uses carbon molecular filters to trap toxic gases and odors from acids, organics, aldehydes, and amines. " The exhaust hood can either be ducted to the outside or a ductless fume hood that uses a carbon filter can be used. General Application Ductless Fume Hoods • Provides Operator Safety and Numerous Features for General Applications 24 “The World’s Most Extensive Selection of Ductless Fume Hoods. Hi all, so I just picked up a good deal on a moderate airflow inline fan, and an activated carbon filter, with two uses in mind, one being for airbrushing laquers, and cleaning my equipment with solvents, but also for use as a ductless fume hood for basic chemistry stuff when it's too cold outside to move stuff out there, in this case, my main thought is performing distillations of acetone so. The AirHawk ductless fume hood offers a centralized control panel with adjustable controls for light and fan speed and displays the air pressure and runtime information. Have a second person support the weight of the range hood while you use a screwdriver to loosen the. A large variety of ducted fume hoods exist. Stuart points to ductless fume hoods as one innovation. There is a significant loss of warmth up via the ducts in traditional fume hoods. conducted for any ductless fume hood. as to how. 17 in. By concept, the principle functions for both fume hoods are the same; airflow is pulled in from the open side of the hood (typically the front), but then differ in concept by the ducted fume hood pushing air out. Ductless fume hoods pass contaminated air through filters before returning air to the room. Sentry Air Systems’ OSHA compliant Portable Spray Booths are built with stringent quality control measures and superior craftsmanship. Esco Ascent™ Opti Ductless Fume Cabinet is equipped with features previously found only on high-end ductless fume cabinets to protect your laboratory personnel from toxic chemical fumes. 00. Full membership to the IDM is for researchers who are fully committed to conducting their research in the IDM preferably accommodated in the IDM complex for 5. Vent Install Type. Best Seller in Lab Fume Hoods. Ductless designs use airflow and air velocity meters to ensure the hood provides air velocity suitable to the job, while maintaining a safe working environment. $294. Costs for a traditional fume hood set up include the hood, the remote blower, and the cost of continually exhausting air out of the laboratory while forcing make-up air in. e. The operating cost is significantly less for ductless units. This means you will put it on your lab desk next to the circuit you want to solder. The liner is compatible with general chemistry use. Height (Metric) Sash Opening. 3. Clean Aire II Fume Hoods are a Class 1 ductless hood workstation with activated Carbon Filtration for fumes, odors, non-hazardous chemical vapors. Ductless fume hoods cut energy bills by filtering and recirculating heated or cooled air back into the laboratory. Do this outside of the cabinet space (in your workshop). Since air is invisible this can be a difficult thing to do! But to better understand how you can keep yourself safe, watch this video to learn about airflow and how it affects you. Ductless fume cabinets provide additional safe ventilated space when you. Next, cut two support beams to the overall length you decided on for the range hood (for me it was 16 inches). Whether or not a fume hood is necessary depends on the concentration of the vapor and the length of exposure. The advent of ductless fume hoods (also known as filtered fume hoods) around 50 years ago was a significant milestone but, since then, advances in filtration technology, safety and flexibility have enabled them to adapt fully to the changing demands and safety standards of the modern laboratory. Cleatech Ductless Exhaust Fume Hood, 32″ Portable , Clear Polycarbonate. Esco ductless fume hoods also offer energy savings, convenience, and mobility. Advanced. Chemcap hoods are ductless with recirculatory filtration, they incorporate efficient ‘Chemcap’ carbon filters for fume removal and HEPA filters for particulates. For ducted fume hoods, ensure that theA hood with missing side panels or cracked sashes will not provide adequate exposure control. The self-contained assembly maximizes filter. Fume hoods remove the fumes as air flows into the hood and then out via the laboratory exhaust system. Hauslane Chef Series WM-739 30" Wall Mount Range Hood. Esco Ascent™ Max-C Series (ADC-C) has a secondary carbon exhaust filter that offers a higher filtration efficiency against toxic chemical fumes. Protector™ XL™ Fume Hoods with By-Pass Block are low velocity and high performance. Ascent™ Opti. ตู้ดูดควันแบบมีท่อ (ducted fume hood) เป็นตู้ดูดควันที่มีการเชื่อต่อท่อระบายอากาศ (Exhaust Duct) ออกสู่ภายนอกอาคาร. Depending on its design, the sash may move vertically or horizontally, or a combination of the two. Chemical Fume Hoods. Sash (Shutter): Counter - Balanced Vertical sash of Polycarbonate (5 mm Thick). EHS and several professional safety and engineering organizations do not recommend the use of ductless fume hoods for several reasons. Purchaser of a DFH can be a Project Manager, an Area Manager, a PI, a department administrator, or any. Glacier BCSD1 30-in 300-CFM Convertible Black Under Cabinet Range Hoods Undercabinet Mount. It has several advantages over duct fume hoods, such as a plug-and-play feature, mobility, hassle-free installation, and no lab work. For bench top, counter tops or cabinetry & casework. Consult local, state and federal agencies regarding the suitability of your application prior to venting fumes to the environment. First, it is. 306. Most fume hoods for industrial purposes are ducted. In contrast, a recirculating fume hood can be suitable for labs dealing with a narrow, known spectrum of chemicals compatible with the filters. 3. . Height (Metric) 235. Robust hood construction for a long lasting. Ductless fume hoods by Air Science ® protect your personnel and the environment from toxic or volatile chemicals so that you can concentrate on what matters most: your work. Update your countertops, cabinets, sink, and more through top-rated kitchen remodeling services from Angi. The Solution Series Solution Work Station laboratory fume hood’s design allows for back-to-back and side-by-side configurations for flexibility in designing undergraduate teaching and learning labs. An exhaust fan situated on the top of the laboratory building pulls air and airborne contaminants through connected ductwork and exhausts them to the atmosphere. 5 sones sound level. They are a conventional fume extraction unit designed so that airborne contaminants are contained in the enclosure prevented from entering the room or laboratory by means of a protective air barrier between the user and the materials placed. Fume hoods are designed to provide personnel protection from toxic or volatile chemicals by continuously shifting airflow away from the user and to the work area. the ductless fume hood may be applied as a Class I Biological Safety Cabinet. Name and Email are required. Unlike traditional fume hoods, they require no ducting so they can be moved from lab to. Photo: homedepot. • High capacity air handling system delivers face velocity of 100 fpm. Ductless Table Top Hood, 23V. Add to Compare. +ADD TO LIST. Paramount Ductless Enclosures are self-contained work stations, also known as ductless fume hoods, that use carbon filters to rid the laboratory of annoying or unsafe concentrations of organic solvents, formaldehyde, acid gases, ammonia, or radioisotopes. Constant Monitoring of Temperature and Humidity Mystaire® ductless fume hoods are self-contained, filtered enclosures that remove hazardous fumes, vapors and particles from virtually any laboratory application. Set. Harm may occur to the operator,. They work by purifying air drawn through the filters and returning it thoroughly cleaned back to the room. Cole-Parmer FHD-200 Carbon Filter for Acids and Sulfur RK-78900-14. The fume hood is an important safety staple in chemistry classrooms and research labs. Warnings are included that manyDuctless Fume Hoods. How to Make a Fume Hood Part 1 - Plan and Supplies Science Marshall 21. DESIGN Professional quality Air Science fume hoods comply with current technical and safety regulations. Finally, dangerous vapours are rejected in the atmosphere without danger to the environment. Fisherbrand™ Walk-In Standard Chemical Fume Hoods are innovative and purpose driven products for the research and healthcare industries. Protects the operator or class from toxic fumes and (with added HEPA/ULPA filter) particle hazards. The Purair SafeSEARCH is a negative pressure containment system or ductless fume hood. 0024 Toll Free/800. Fume hoods are often the most used piece of equipment in research laboratories and frequently shared by lab personnel. Esco ductless fume hoods are independently tested by INVENT‐UK for the ability to filter contaminated air with efficiency and retention capacity as required by the British Standard BS 7989 and French Standard AFNOR NF X 15‐211. Space-saving design. The hood is constructed of chemical-resistant epoxy-coated steel for added mechanical strength. Has a six-inch round vent to fit most kitchen pipes. Our ductless fume hoods provide energy. Ducted fume hoods have ventilated enclosures and operate within the. $5,500. Functionality and durability in mind, our fume hoods are designed for the harshest laboratory environment today. The Thermo Scientific Hyperclean TruAir fume hood product line features filtration technology that creates The Purair ® Basic ductless fume hoods are designed to provide high level performance features at an affordable price. • An expensive ducting and external blower system that is often difficult to maintain is not required. Protector. Köttermann Pharmacy Fume Hood without Media. * The case is made of 8mmPP plate, with good finish and corrosion resistance. Fume hoods are used for ventilation of enclosed workspaces to isolate samples from the user or the environment. 2. Ductless fume hoods are self-contained enclosures that filter air before returning it to the work environment. Protects the environment by trapping wider variety of chemicals than other carbon filtration methods. Aura™ 42, Aura™ 250 and Aura™ 550 Ductless Fume Hood: Gas Phase Carbon: Each for $1,023. Ductless Fume Hoods provide protection to both laboratory personnel and the environment from toxic fumes and are quickly becoming a viable alternative to conventional fume hoods. A floor mount fume hood is typically a large stationary equipment enclosed on five. 00 $ 489. Remove the motor housing from the vent by taking out the screws. Has a long and deep tray to capture the oil and grease that the filters don’t. Fume hoods function by maintaining a relatively negative interior pressure while continuously drawing air through the sash opening, which prevents contaminants from escaping. Our systems utilize powerful fans combined with a variety of pre-filters,. Here I show how I built my home-made chemical fume hood for use in gold recovery from electronic scrap. Model # BCSD130BL. The self-contained assembly maximizes filter. conducted for any ductless fume hood. 0656 F/800. Operators should consider fume inhalation risks and utilize respiratory engineering controls, such as a ductless fume hood or exhaust hood, to. Improved filter clamping eliminates by-pass leakage. With a 400 CFM range hood, install 4” duct. Product Specs. Occupational Health and Safety • 2. 1. A: Carbon filters are a critical component of a ductless fume hood as they are the adsorbers for any chemical molecule. Paramount Ductless Enclosures are self-contained work stations, also known as ductless fume hoods, that use carbon filters to rid the laboratory of annoying or unsafe concentrations of organic solvents, formaldehyde, acid gases, ammonia, or radioisotopes. When it comes to ductwork, it’s a numbers game. The blower inside sucks in air from the room through the front opening, takes the gasses or fumes inside the box, and passes them through the filter, finally throwing the filtered air into the room again. Protecting People and Processes. Ductless fume hoods pass contaminated air through filters before returning air to the room. This hood comes standard as large as 16 feet wide x 43. TopAir Ductless Fume Hoods are made of high-quality non-corrosive polypropylene with excellent chemical resistance that regular metal hoods cannot compete with. Place a particulate-trapping HEPA filter after a carbon filter to help provide exhaust air suitable for cleanroom. Reorder Filters;All areas where it has been determined that a fume hood is required and a ductless fume hood is desired. Combined with a powerful airflow, advanced electronics, and a compact enclosure, the AirHawk provides optimal respiratory protection for a wide variety of commercial, laboratory, and medical applications. 1 Recirculates air from hood through carbon or chemically active adsorbent filter back into lab Not for use with toxic/highly toxic materials Modern ductless hoods have 2 levels of filters and break though alarmsHigh capacity air handling system delivers flow velocity of 0. Fotile 30-Inch Under-Cabinet or Wall-Mount Range Hood. Has small graphics on the touchscreen that may be difficult for some to read. Snorkel exhaust articulating arm for ceilings and walls offer a perfect solution for numerous types of workplaces. But you have to try and manage it! Since air is invisible this can be a difficul. This is a self-contained work station, also known as a ductless fume hood, that requires no ducting so they it can be moved from lab to lab. Start with a point 20 cm from the bottom, followed by one 54cm to the left of the top. You also need to use your hood or exhaust fan regularly. Check out this diverse supply of fume hoods with and without filters for acid gases and particulates, as well as replacement and accessory items. Fume Box ductless enclosures are available in 3 standard models, in metal or polypropylene construction, totaling 6 standard models. At the heart of the Purair Advanced ductless fume hood product line is the innovative Air Science® Multiplex™. It recirculates the air through multi-stage filters to capture and remove dust, smoke, and fumes before they enter the work area. In ordinary times, keeping the work area and. We suggest you get. Low airflow alarm. ** 48″, 60″ and 72″ ductless hoods includes two 1200 CFM blowers and requires two sets of filter. Since they have a lifespan, they will need to be installed, replaced, and purchased. The fume hood encloses a work bench area that has a fan unit at the top. Introduction Step 1: Precutting/Sizing The Materials. Fume hoods remove the fumes as air flows into the hood and then out via the laboratory exhaust system. These fume hoods are a Class DH1 ductless hood workstation with integral carbon filters that absorb solvents, acids, and odors. Depth (English) 37. 2. Ductless fume hoods have no place in the reactions side of refining. A ductless fume hood is a contained working space that uses powerful negative airflow to pull harmful fumes, vapors or particulate away from the operator’s respiratory zone and protects the operator and the environment from exposure. The manufacturer label must be affixed on the outside of the hood. This equipment is designed to provide protection from toxic chemical fumes and is essential in most laboratories as it is the primary method of exposure control. emonStration. The hood is resistant to acid, alkali, and is anti-corrosive. 00USD / Each. Activated Carbon Filtration for fumes, odors, non-hazardous chemical vapors. 995% pure air back to your lab is our promise. This DIY fume hood build sucks — toxic fumes away from your workshop! Work in peace knowing those toxic fumes are being handled. Supports wide array. We have three types of fume extraction system: Ducted Fume Cupboard, Ductless Fume Hood, and Fume Extractor Arms. Energy Efficient. Please choose filter from the table below. Cut a window in your last panel. Fume hoods are designed to provide personnel protection from toxic or volatile chemicals by continuously shifting airflow away from the user and to the work area. Ductless Fume Hoods- Portable. 100% RE-CIRCULATORY (DUCTLESS) FUME HOODS: A ductless, self-contained, carbon and/or HEPA-filtered enclosure, that draws air into the front of the hood, passes it through multi-stage filters, and then re-circulates it into the lab. 96″ x 30″ x 42″. In the US, there are strict laws from OSHA, and you're asking for a hefty fine. $6,610. We have our own in-house testing facility that maintains a complete library of test reports, technical bulletins, standards and certifications that apply to the use of ductless fume hoods. Because the air that is pulled into the hood is not filtered, fume hoods only offer protection to its users and no protection to the. these hoods filter out chemical fumes and recycle air directly back to the laboratory, providing energy savings, personnel and environmental protection, convenience as well. diy ductless fume hood Saturday, March 5, 2022 Edit. This type of fume hood is quickly becoming a viable alternative to conventional fume hoods due to its modern design, features, and convenience. Used. Over time the filters require replacement and oftentimes these filters fail to contain all vapors, thus posing a significant hazard. Fume scrubbing is a different matter. d. Once you’ve got the materials precut and sized, the next step is to cut the edges. Fume hoods are often the most used piece of equipment in research laboratories and frequently shared by lab personnel. Provides total filtration of toxic gases, fumes, odors, and powders. This is a common comment. Obstructions such as pillars or columns in the laboratory should not be within 30 cm of the sides of the fume hood. Made out of panelized fiberglass, the design allows for wider and deeper standard sizes. Ductless fume hoods (with carbon filters) All LabGuard fume hoods are type-tested for ASHRAE 110:2016 and EN 14175:2003 performance standards and certified by third-party too. AirMax, with wet fume scrubber, is a total solution for minimizing personnel, ductwork and environmental exposure to caustic acid gases. Users need to be able to rely on their fume hood as a primary containment device to protect them from the hazards within. • Know and check your airflow! For fume hoods, air always goes into the hood, away from the operator. Also, the fume hood performance can be tested in LabGuard’s state of the art in-house fume hood test facility. Paramount Ductless Enclosures are self-contained work stations, also known as ductless fume hoods, that use carbon filters to rid the laboratory of annoying or unsafe concentrations of organic solvents, formaldehyde, acid gases, ammonia, or radioisotopes. Ductless/filtered fume hoods offer a targeted solution for laboratory managers’ processing needs. All LabGuard fume hoods are type-tested for ASHRAE 110:2016 and EN 14175:2003 performance standards and. Bench top fume hoods are ideal for facilities, laboratories, and work-spaces with a smaller footprint and can be easily transported on and off-site. Downflow Workstation is a benchtop ductless unit with a built-in blower. It is completely molded of fire retardant fiberglass. 4. Once the air is drawn in, it moves through a filter called the pre-filter. Select Options. If you are going to fix some plexiglass there, think about leaving a little padding. If you prefer, you may contact us by calling 800-799-4609, or e-mail us at sales@sentryair. A ducted fume hood might be the better choice if your lab handles a wide range of chemicals, especially those generating hazardous gasses. Each laboratory should be provided with efficient fume hoods, equipped with a sink for the washing of apparatus used for handling toxic materials. Our ductless fume hoods are available in a. Because the status of the chemical fume hood can change anytime, continuous air flow indicators are recommended. These exhaust hoods are fitted with fans that. SEE IT. BUEZ1 30 in. 21. The Biotech Elite Polypropylene Fume Hood is a ducted hood made of porcelain white polypropylene. Mystaire™ AU3807 Formaldehyde: Aura™ 30, Aura™ 54 and Aura™ 750 Ductless Fume Hood. Energy Expenditure/ Running Costs: Here ductless hood is a clear. . . from Terra Universal, Inc. A ductless fume hood can eliminate very high percentages of particulates and biological hazards to protect lab workers and the lab environment. It’s an ideal size for most stoves and easy on the wallet. Dimensions (L x W x H) 640 x 900 x 1350 mm. D. For instance, a typical 400-cfm unit requires a. Light duty enclosures for nuisance vapors, advanced hood systems for hazardous toxic fumes or highly specialized. FLOW-24-A. By combining HEPA-filtered incoming air with a traditional ‘total exhaust’ hood configuration, clean turbulence-free air blankets the. I talk about my homemade fume hood: the cost, type of materials, general design plan, and give a few tips. smoke, fume), while activated carbon is designed to better filter odors (i. 306. Limited use NFPA 45 - 7. Chemical resistant liners to protect the interior of the fume hood against damage from any chemicals. 00. Air Science Ductless Fume Hoods, PCR Laminar Flow Cabinets, Laminar Flow Hoods, Forensic Lab Equipment, and Biosafety Cabinets. Ideally you'll also want a hood that contains no metallic components. Advantage: 1. Ductless Fume Hoods provide protection to both laboratory personnel and the environment from toxic fumes and are quickly becoming a viable alternative to conventional fume hoods. Robust Hood Construction. Use for locations where outside ventilation cannot be achieved. Indemnity4 • 4 yr. fume hoods are advised to be placed side by side rather than facing each other. Fume Hoods protect laboratory staff from noxious fumes released by acids, dangerous gas, and organic solutions. Labconco™ Paramount™ Ductless Enclosure: 3ft. Promotions are available. Over time the filters require replacement and oftentimes these filters fail to contain all vapors, thus posing a significant hazard. Here I show how I built my home-made chemical fume hood for use in gold recovery from electronic scrap. Labconco offers dished and flat solid epoxy and flat. The Echo is the world's most advanced chemical filtration system coupled with the versatility of the Labconco Protector Fume Hood platform that laboratories trust. Two types of carbon or one type of carbon and a HEPA filter may be stacked for mixed use. e. With fume hoods. Since 1992, AirClean Systems has manufactured a complete range of ductless fume hoods and laminar flow hoods designed to protect the operator, the process, or both from toxic vapors, fumes, gases, and particles. Weller WSA350. . eGuard® communication software offers real-time monitoring on the user’s phone or computer. Unlike traditional fume hoods, installation costs are very low and no ductwork is required.