Silent ventilation fan


Efficient purification

PM2.5 purification rate reaches 99.9%, eliminating air pollution


Maximum static pressure up to 610pa, low noise

Ultra far air supply

The air supply distance is up to 120 meters, which makes the air supply more stable

Silent ventilation fan参数

Product model  JTD-220 JTD-400   JTD-550 JTD-800 JTD-1000        JTD-1300  JTD-1800 JTD-2000
Air volume(m3/h) High / low  220/- 400/330 550/450 800/650 1000/800 1300/950 1800/1400 2000/1700
power(W) 25 45 80 150 210 260 400 430
noise(dB(A) 23 25 26 33 35 38 40 43
Maximum static pressure(Pa) 110 130 185 185 240 240 400 610
Power Supply 220V/50Hz
Waterproof grade IPX4
Tuyere diameter(mm) 98 142 196 245
weight(Kg) 5.5 6.5 9 9.5 16 16.5 19 20
Product size (length * width * height mm) 490*325*205 520*325*240 565*360*280 620*375*310 625*480*390 665*400*400 745*450*450

● the unit adopts fingerprint resistant plate design, with beautiful appearance;

● the design and installation are easy to operate and the operation performance is reliable;

● centrifugal fans and motors with high performance and low noise shall be used, and sound-absorbing insulation materials shall be used for the inner wall of the box to ensure smooth operation and minimum noise when the air volume and static pressure are high.

1. The company reserves the right to change the parameters and appearance. The products are updated continuously. Please refer to the actual products and product nameplates. Any change is subject to no notice;

2. Executive Standards of the equipment: GB / t1236-2017, gb4706.1-2008, gb4706.32-2012;

3. J represents mute series, T represents ventilator, D represents ceiling type, digital represents air volume, DC represents DC (AC omitted)


1. Please contact the manufacturer or professional personnel to replace and clean the filter screen according to the unit cleaning tips;
2. In case of any unit failure, please contact the manufacturer or the sales and installation unit, and do not repair by yourself;
3. In case of water leakage, please disconnect the power supply of the machine and contact the manufacturer or the sales and installation sheet for maintenance;
4. Parameters, dimensions and other changes caused by product upgrading of the company shall be subject to the actual product and product nameplate, and will not be notified in case of any change.

Matters needing attention

1. Please arrange special power line for the machine to supply power;
2. When the machine is stopped for a long time, please unplug the power supply;
3. Please construct in strict accordance with the requirements of construction standards to ensure smooth drainage;
4. It is forbidden to wash the machine directly with water or wipe the machine with wet cloth when it is electrified;
5. It is forbidden to install the machine in the space of heat source, inflammable and explosive, acid and alkali, salt, paint and glue.


1. Failing to provide invoices, receipts or shopping vouchers;
2. Machine damage caused by natural disasters or human factors;
3. Damage caused by exceeding the scope of use or installing or dismantling the machine without permission;
4. Machine damage caused by abnormal supply voltage or wrong wiring;
5. All rights of interpretation belong to Ningbo tengkong New Energy Technology Co., Ltd;
6. The machine is damaged due to improper installation or use in accordance with the instructions.

service commitment

Product Three Guarantees: the whole machine is guaranteed for three years, and the lifetime maintenance warranty period is calculated from the date of invoice After sales service: 24-hour response in Jiangsu, Zhejiang and Shanghai, 48 hours arrival in other areas (except Xinjiang, Tibet, Qinghai, Inner Mongolia) 24 hours response and telephone guidance, 72 hours in place Price system: all parts and components, value-added services, unified national price