Except PM2.5 total heat exchange fresh air purifier


Slim chassis

Ultra thin body 217mm, more flexible and convenient installation space

High efficiency filter element

The energy recovery rate of high-efficiency filter element is as high as 63%, using the minimum energy consumption to enjoy all-round health air comfort

PM2.5 purification

The purification rate of PM2.5 reaches 99.9%, with built-in multi-layer purification device to prevent dirty air from entering the room

Fresh air ventilation

Introduce fresh air to improve indoor oxygen enrichment, replace indoor dirty air and reduce indoor carbon dioxide

Super Silent

CDF air duct design + DC motor, larger air volume, lower noise

Except PM2.5 total heat exchange fresh air purifier参数

Product model  QXMD-155/DCB1 QXMD-260/DCB1  QXMD-360/DCB1  QXMD-520/DCB1 QXMD-155/X QXMD-260/X QXMD-360/X QXMD-520/X
Heat recovery rate(%) Summer time High / medium / low  65/68/71 65/68/71 66/68/70 67/69/71 63/65/69 63/65/68 63/66/68 63/65/69
Winter time High / medium / low  71/75/78 71/75/78 72/75/78 73/75/79 70/73/76 69/72/76 70/73/77 71/75/78
noise(dB(A) High / medium / low  35/32/28 37/34/31 39/36/32 40/36/32 35/32/28 37/34/31 39/36/32 40/36/32
power(W) High / medium / low  74/53/40 115/78/60 140/85/70 230/145/80 100/85/75 115/78/60 180/150/130 410/350/300
Air volume(m3/h) 155 260 360 520 155 260 360 520
static pressure(Pa) 100 70 150
Power Supply 220V/50Hz
Waterproof grade IPX4
Tuyere diameter(mm) 96 145 145 195 110 145 190
weight(Kg) 29 32 37 51 23 24 27 33
Product size (length * width * height mm) 1020*580*217 1090*690*217 1150*820*217 1245*870*255 890*640*205 890*640*220 890*700*260 1005*755*275

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 / t21087-2007, gb4706.1-2008, gb4706.32-2012;

3. Q represents total heat exchange, X represents fresh air exchange, M represents haze removal or PM2.5, D represents ceiling type, digital represents air volume, DC represents DC (AC omitted), B1 or X represents series


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