How can I remind others to close the sash?

You can post a sticker near the hood to remind users and lab mates to close the sash when not in use, educating them that a lower sash is safer.

What are the advantages of a ductless fume hood?

Key advantages include minimal installation costs, no external ducting, no permitting issues, portability, minimal maintenance, and significant energy savings.

What are the limitations of a ductless fume hood?

They may not be suitable for low molecular weight gases (like methane) or applications with high volumes of volatile chemicals that can saturate carbon filters quickly.

Factory Price Ductless Fume Hood Double-Layer Filters Touch Screen Benchtop Lab Fume Hood

Name: Factory Price Ductless Fume Hood Double-Layer Filters Touch Screen Benchtop Lab Fume Hood
Brand: Chengdu Ample Import and Export Co., Ltd.
SKU: 2168332625

Sichuan, ChinaChengdu Ample Import and Export Co., Ltd.

US$7,500.00

1-9 Sets

US$6,500.00

10-49 Sets

US$5,500.00

50+ Sets

Product profile

Customization

Available

Material

Stainless Steel

Type

Slit Type

Model NO.

DM1275/1600

Function

Exhaust, Velocity Control

Feature

Corrosion Resistance, Heat Resistant, Acid & Alkali Resistant, Fireproof, Explosion Proof

Hood Type

Standard

Color

White

Customized

Condition

New

Product Name

Ductless Fume Hood

Worktop

20+6 mm Ceramic

Liner Material

Ceramic Fiber Board

Sash

Tempered Glass

Filter

370*395*50mm

Input Power

110V-240V

Face Velocity

0.4-0.6 M/S

Application

Environment/Institute/Biology Lab/Chemical Lab

Transport Package

Standard Export Wooden Case Packing

Specification

1600*620*1245 MM

Trademark

Ample

Origin

Chengdu, China

HS Code

8414809090

Production Capacity

200 Set/Month

Key features

Ductless Design: Recirculates filtered air, eliminating need for external ducting or venting.

Touch Screen Control: Features LED screen for intuitive velocity and exhaust control.

Double-Layer Filtration: Advanced filtration system effectively removes hazardous vapors and particulates.

Customizable Options: Product name, worktop, liner, sash, and filter dimensions are fully customizable.

Corrosion Resistance: Constructed with stainless steel and ceramic materials for acid, alkali, and heat resistance.

Energy Efficient: Significant energy cost savings compared to traditional ducted systems.

Safety Certified: Passes safety tests in accordance with international standards.

Portable & Adaptable: Compact design with mobile wheels allows easy layout changes.

Company profile

Importers and ExportersPatents AwardedOEM ServicesR&D Capabilities

Chengdu Ample Import and Export Co., Ltd.

Sichuan, China

Business Type: Manufacturer/FactoryExport Year: 2019-07-01Average Response Time: ≤2.81hTerms of Payment: LC, T/T, PayPal, etc.International Commercial Terms(Incoterms): FOB, EXW, CIF

AI-Powered supplier vetting

SummaryThe supplier is identified as a Chengdu-based trading company with ISO 9001 certification and broad export coverage. It supports customization from samples, minor customization, customization from designs, ODM, and OEM services, but does not provide 3D software design, has no SDK, and launched no new products in the past year. Its R&D team includes one engineer, while stated total R&D experience is 6–10 years. Service and quality-management documentation is weak: no written complaint or corrective-action procedures, no approved-supplier list, and no quality-control testing equipment reported. It has no stated inventory, overseas warehouse, overseas showroom, overseas agent, or branch capability. Financial evidence is limited to year labels without performance results, so financial credibility cannot be determined.

CertificationsThe supplier reports holding ISO 9001 certification. This is explicit evidence of a certified quality-management system, although no certificate scope, issuing body, or validity details are provided.

After-Sales capabilityThe supplier has no overseas agents or branches, overseas showroom, overseas warehouse, or in-stock capability. It also reports no written procedures or records for complaint handling and corrective/preventive actions, indicating a documented after-sales service deficiency.

R&D capabilityInnovation resources are limited: the supplier reports one R&D engineer, no new products launched in the past year, no 3D software design service, and no available SDK. ODM capability and 6–10 years of stated R&D-engineer experience provide some development capacity, but the explicit lack of recent new products indicates a deficiency in demonstrated innovation output.

Customization capabilityThe supplier explicitly supports customization from samples, minor customization, customization from designs, ODM services, and OEM services for popular brands. These multiple stated service types demonstrate a clear customization capability, despite the absence of 3D software design and SDK support.

Client casesThe supplier states that it provides OEM services for well-known brands, which is evidence of at least some brand-customer experience. No customer names, project details, or independently verifiable case information are provided, so the evidence is limited.

Product Q&A

Q:What is a fume hood?

A fume hood is laboratory equipment designed to minimize exposure to hazardous chemicals by drawing away harmful vapors and filtering them before exhausting or recirculating the air.

Q:How does a fume hood work?

It uses a sash to contain vapors and blowers to draw air through filters. For safety, keep work at least six inches from the sash plane and keep the sash closed as much as possible.

Q:Why do fume hoods use so much energy?

Energy is consumed by moving large volumes of air through the building and conditioning 100% outside air for lab comfort, rather than by the hood unit itself.

Q:How does shutting the sash save energy?

Variable air volume (VAV) hoods reduce fan speed and air volume when the sash is lowered, as the sash position is connected to the building's ventilation system.

Q:Is it safe to shut the sash?

Yes, shutting the sash is the safest option when not setting up experiments, as it acts as a safety barrier while maintaining airflow to remove fumes.