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Ductless fume hoods are safety devices specifically designed for laboratory and industrial environments, its purpose is to protect operators from harmful fumes, vapors, and particulate matter generated during experiments.Moreover, this fume hood is specially designed so that it does not need to be connected to the laboratory's large ventilation system, It is particularly suitable for application scenarios that have high requirements for aesthetics, portability and practicality.It can effectively remove harmful fumes, gases and particulate matter, while ensuring low energy consumption and quiet operation.
Our expert team delivers sleek, energy‑efficient ductless fume hoods with advanced filtration to capture harmful fumes, vapors, and particulates—protecting users and workspaces without complex ductwork.
Ducted Fume Hood
Connects to the building exhaust system and physically vents fumes outdoors, which is still the “gold standard” for most hazardous chemical work.
Best for labs handling aggressive solvents, corrosive acids/bases, or unknown mixtures where you don’t want to rely only on filters.
Very robust from a safety perspective: if something unexpected is used, the system is more forgiving because contaminants are removed from the building, not recirculated.
Higher upfront cost and less flexibility: you need ductwork, coordination with facilities, and usually a fixed location in the lab layout.
Maintenance focuses on airflow, duct integrity, and fan performance rather than complex multi‑stage filtration, which many facility teams are already familiar with.
Ductless Fume Hood
Uses adsorption or specialty filters to capture contaminants and then returns cleaned air back into the room—no ductwork needed.
Ideal for low‑to‑moderate risk chemicals with well‑known properties and usage patterns, especially where building modifications are difficult or expensive.
Much easier to install and relocate: plug‑and‑play in many cases, which is attractive for leased spaces, teaching labs, and smaller R&D setups.
Requires strict chemical assessment and filter management: you need to know exactly what you’re using, check filter saturation, and follow a defined replacement schedule.
Lifecycle costs can be higher if filters are changed often, but for the right application they can offer a very practical, energy‑efficient alternative to a full ducted system.
Deiiang Chemical Ductless Fume Hood can efficiently handle various strong solvents and fuel vapors, without major modifications to the ventilation ducts, chemists can still be provided with stable odor extraction protection.
Portable Ductless Fume Hood allows forensic experts to confidently use super glue, staining agents, and solvents next to evidence.This reduces exposure without disrupting the evidence flow process.
PP Ductless Fume Hood is resistant to corrosive electrolytes and adhesives, even after long-term testing, the equipment is not susceptible to corrosion, moreover, there's no need to make major changes to the air conditioning and ventilation systems.
Desktop Ductless Fume Hood can reliably control solvent vapors such as ethanol and hydrocarbons, It is particularly suitable for renting factories and small workshops, and meets safety requirements in a lighter way.
Laboratory Ductless Fume Hood can directly dispose of fumes from coatings, adhesives, and cleaning agents within the operating area, eliminating the need to invest in a dedicated large exhaust system.
The compact ductless fume hood allows testing personnel to safely dispose of soil, water samples, and filter membranes on-site or in a temporary laboratory, without having to rely on a fixed, large fume hood.
The mini Ductless Fume Hood protects operators from irritating fumes from fixatives, dyes, and disinfectants, even in the cramped back-of-house testing area, it provides an extra layer of protection for doctors and technicians.
The energy-efficient ductless fume hood is specifically designed to combat strong odors and VOCs, It allows formulation engineers to work in an almost odorless environment while also reducing energy consumption.
To start, simply select a manufacturing process and upload a 3D CAD file.
Within a few hours we'll send you design for manufacturability (DFM) analysis and real-time pricing.
Once you review your quote and place your order, we'll start the manufacturing process. We also offer finishing options.
Our digital manufacturing process allows us to produce parts in as fast as 1 day.
The Ductless Fume Hood is an essential safety device designed for laboratories and industrial environments to protect users from harmful fumes, vapors, and particulate matter. This minimalist model combines efficiency with a sleek design, making it ideal for spaces where aesthetics and functionality are equally important.
Deiiang Ductless Fume Hood Quality Control Flowchart
Simply put, a ductless fume hood is a small hood with both exhaust and filtration functions, it is used to remove harmful gases, vapors and tiny particles generated during experimental operations.Besides it is more convenient than a conventional fume hood, It does not need to be connected to the laboratory's ventilation system ductwork.It draws in the stale air from inside the hood, processes it through a filter, and then blows clean air back into the room.
This equipment is particularly suitable for places where drilling or running pipes is inconvenient, for example, already renovated laboratories and school teaching laboratories, there are also experimental areas within some small factory buildings.However, experiments involving chemicals and volatile substances are required, using it to add a layer of protection gives much greater peace of mind.
Ductless fume hoods draw in air containing pollutants through openings inside the hood, then the filters are used to filter the polluted air, this typically includes HEPA filters and activated carbon filters.HEPA filters are responsible for intercepting particulate matter, activated carbon filters are used to adsorb chemical vapors.
After the air is filtered clean, It is then sent back indoors for reuse.Because this is a closed loop system, It provides excellent protection without requiring external ventilation ducts, therefore, it is suitable for many different occasions.
No Ductwork Required: It has a wider range of applications, It allows for convenient experimentation anytime, anywhere.
Cost-Effective: The initial investment is relatively lower, and it is more energy-efficient, the daily operating costs are also lower.
Portable: Many models are quite lightweight, making them easy to move around, the layout of the laboratory can be changed more flexibly.
Compact Design: Compact design, small footprint, It is especially suitable for places with limited space where traditional fume hoods cannot be placed.
It is generally recommended to ｒｅｐｌａｃｅ HEPA and activated carbon filters every 6 to 12 months.In addition, it is important to regularly check the fan speed and filter status to ensure effectiveness and safety.
The exact frequency of replacement depends on the actual usage.Because the chemicals used in the experiments are different, the frequency of use is different, and the application scenarios are different, the frequency of filter replacement will also change.
HEPA filters: Used to trap particulate matter such as dust, allergens, and bacteria.
Activated carbon filter: Used to adsorb chemical vapors and odors.
Pre-filter:First, stop the larger particles, reduce the burden on HEPA and activated carbon filters, extend their service life.
These filters work together to provide comprehensive filtration of a variety of harmful substances.
Dimensions and Size:First, you need to see if it can fit into your work area.In addition, it should be able to accommodate other equipment you need.
Filtration Requirements:Depending on the types of chemicals you will actually use in your experiment, select the corresponding filter type and level.
Airflow Rate: Choose a model with sufficient air volume to meet your experimental or operational needs.
Safety Certifications:Confirm that the selected model meets the relevant safety standards and certifications, it complies with your local regulations.
Yes, ductless fume hoods are generally more energy-efficient.It does not require an external ventilation system, there's no need to vent the indoor air out and then reheat or cool it with the air conditioner, instead, the filtered air is circulated directly indoors, this can greatly reduce the burden on the air conditioner and energy consumption.
In addition, many models also use low-power fans and LED lighting, while ensuring the performance, the overall power consumption will be lower, saving more energy.
Filter Replacement: ｒｅｐｌａｃｅ the filter regularly according to our product guidelines.
Cleaning: Wipe the exterior and interior regularly to prevent contaminant buildup.
Performance Checks: Regularly conduct performance tests on the product, like face wind speed, differential pressure measurement, and fan status and function testing, If problems are discovered, they need to be addressed promptly.
Actually, no. It's convenient, but it's more suitable for materials with low to moderate hazards.Such as those involving highly volatile and toxic chemicals, it is safer to stick to the traditional fume hood with ductwork.
Always check the safety data sheet of the chemical you are going to be experimenting with before using it, confirm its compatibility with fume hoods.
