User open letter:

Dear Xinfeng users

Thank you for choosing and using the intelligent fresh air purification products of the national filter purification cabinet!

For your convenience, please read the manual carefully and follow the steps in the manual. From beginning to end, the "health star service" of our company's smart fresh air will accompany you. Regardless of any problems during use, please contact us according to the phone number and address of the warranty, and we are always ready to serve you!

Due to the improvement of the national filter purification cabinet-type intelligent fresh air purification products, the intelligent fresh air purification system you purchased may not be exactly the same as the description in the manual. I apologize!

Precautions:

1. Do not modify, disassemble or repair by yourself to avoid electric shock or malfunction.

2. Please use the specified voltage specified by the national filter purification cabinet-type intelligent new fan, plug the power supply in a triangle, and ensure that it is grounded.

3. When replacing the filter, make sure that the power plug has been unplugged to avoid the risk of injury or electric shock.

4. Do not put foreign objects, metal objects or fingers into the air inlet and outlet to avoid malfunction or human injury.

5. Do not splash or wash this product to avoid mechanical failure or electric shock.

6. The power plug and power cord must not be damaged. The power cord must not be pulled by heavy objects or forcefully. If it is damaged, please contact the supplier or professional maintenance personnel for replacement.

7. The national filter purification cabinet type intelligent fresh air blower needs to be placed in a dry place, pay attention to moisture, lightning, rain, frost and snow.

8. The national filter purification cabinet type intelligent fresh air blower needs to be fireproof, and keep away from flammable, explosive and corrosive hazardous materials.

It is forbidden to unplug and plug wires with wet hands, touch wires, switches and metal casings

10. Avoid strong collisions and smashing of the product to prevent the machine from deforming or the wire body from falling off, causing safety hazards.

Features:

1. The indoor and outdoor air circulates continuously and alternately for 24 hours.

2. The PM2.5 purification efficiency is over 99.95%.

3. Three-level air volume is adjustable, which fits different spaces and needs closely.

4. Mute design, scientific and reasonable air duct design, low resistance and low noise.

5. DC rigid motor, energy saving and silent.

6. Two-way energy recovery.

Product parameters of cabinet type intelligent fresh air fan:

Cabinet type intelligent fresh air fan size: