What is the warranty period for this product?

The product comes with a 1-year warranty.

What after-sales services are provided?

We provide online technical support and free spare parts as part of our after-sales service.

What is the power consumption of the fan?

The reversible 3-speed EC duct fan has a low power consumption of 6-7.8W, saving over 30% energy compared to normal exhaust fans.

Ductless Simple and Highly Efficient Heat Recovery Ventilation Through-Wall Dedicated Ventilation Systems

Name: Ductless Simple and Highly Efficient Heat Recovery Ventilation Through-Wall Dedicated Ventilation Systems
Brand: Foshan Dumi Building Material Co., Limited
SKU: 1929685161

Guangdong, ChinaFoshan Dumi Building Material Co., Limited

US$170.00

1-99 Pieces

US$150.00

100-499 Pieces

US$140.00

500+ Pieces

Sample price:US$170.00/piece.Request sample

Product profile

Customization

Available

Material

Plastic

Blade Material

Plastic

Model NO.

DBM5-W

Type

Exhaust Fan

Electric Current Type

Mounting

Wall Fan

Certification

RoHS, CE

Warranty

1year

After-Sale Service

Online Technical Support, Free Spare Parts

Application

Bedroom

Suitable for

Single Room, Bedroom, Hotel Room, etc

Heat Exchanger

Enthaply Heat Exchanger

Installation

Wall Mounted Erv

Voltage (V)

100V~240V AC /50-60Hz

Input Power (W)

6-7.8W

Current (a)

0.04-0.06 a

Rpm

2000 (Max)

Airflow (M3/H) L/M/H

20/40/50

Regeneration Efficiency (%)

up to 97%

Transport Package

Carton/Box

Specification

50*28*28cm

Trademark

DBM

Origin

Guangdong, China

Production Capacity

100000PCS/Month

Key features

97% Heat Recovery Efficiency: Built-in high-tech ceramic energy regenerator ensures maximum heat recovery efficiency of up to 97%.

Smart APP & Remote Control: Control via button, remote, or WIFI Smart APP. Supports Android/iOS, scene control, and group control.

Ultra-Quiet Operation: Reversible 3-speed EC duct fan operates quietly with sound pressure level of less than 32.7dB(A).

Low Power Consumption: Energy-saving EC technology with input power of only 6-7.8W, saving over 30% energy compared to normal fans.

Advanced Air Filtration: Standard pre-filter and F7 (MERV11) filter, both antibacterially treated, keep air clean and prevent dust.

IAQ Control with CO2 Sensor: Standard CO2 sensor displays real-time concentration and controls unit to dilute CO2; optional humidity sensor.

IPX4 Ingress Protection: High ingress protection rating of IPX4 ensures durability and safety in various environmental conditions.

Company profile

Foshan Dumi Building Material Co., Limited

Guangdong, China

Business Type: Manufacturer/Factory, Trading CompanyExport Year: 2021-06-24Average Response Time: ≤2.38hTerms of Payment: T/T, Western UnionInternational Commercial Terms(Incoterms): FOB, EXW

AI-Powered supplier vetting

SummaryFoshan Dumi Building Material Co., Limited is identified as both a trading company and manufacturer/factory in Guangdong, China. It operates more than 10 production lines and reports inventory capability, export activity across multiple regions, and export sales accounting for 71%–90% of total sales. The supplier offers 3D design and several customization options, but reports fewer than five R&D engineers and no new products in the past year. Service infrastructure is limited: it has no overseas warehouses, showrooms, agents, branches, or reported offline trade-show participation. Lead times are stated as within 15 working days in both peak and off-season. Financial information provided is recorded as zero or otherwise insufficient for a reliable assessment. No certification holdings or customer cases are provided.

Supplier typeThe supplier is explicitly classified as both a Trading Company and Manufacturer/Factory, and its business scope includes metal products, import and export, household appliances, clothing, and household items. This indicates a mixed manufacturing and trading structure with a broad stated scope.

R&D capabilityThe supplier provides 3D software design services and has fewer than five R&D engineers, but explicitly reports no new products during the past year. The available evidence supports design-related capability but not recent product innovation.

Production capacityThe supplier operates more than 10 production lines, reports inventory capability, and states peak- and off-season lead times within 15 working days. It also reports export markets across five broad regions and export sales of 71%–90%, providing explicit evidence of substantial production and export operating capability.

Customization capabilityThe supplier explicitly offers customization from samples, designs, full customization, minor customization, flexible customization, and 3D software design services. These stated offerings demonstrate broad customization capability.

Product Q&A

Q:What is the heat recovery efficiency?

The unit features a high-tech ceramic energy regenerator with a maximum heat recovery efficiency of up to 97%.

Q:How is the ventilation unit controlled?

It can be controlled via button, remote controller, or WIFI Smart APP. The APP supports Android and iOS for remote control, scene creation, and group control.

Q:What are the air filtration standards?

The unit comes with two integrated air pre-filters and a standard F7 (MERV11) air filter. Both are antibacterially treated to prevent dust and bacterial growth.

Q:Does the unit support smart home integration?

Yes, it supports WIFI control via a Smart APP. Users can control the unit from anywhere in the world using Android or iOS smartphones via a cloud server.

Q:What is the noise level of the fan?

The unit operates quietly with a sound pressure level of less than 32.7dB(A), ensuring silent operation.