——  Security ● Defence ● Solution —— 
Defense and Security is that defence is the action of defending, of protecting from attack, danger or injury while security is (uncountable) the condition of not being threatened, especially physically, psychologically, emotionally, or financially.
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    Publish time 2021-02-03 21:06    

Silent Recording Shielder Air purifier

Hidden Voice Recording Jammer

This audio shield is a product developed by R&D personnel of our company according to the characteristics and requirements of anti-recording shield. The shape of the product is an air purifier with dual functions of air purification and audio shield. The product has beautiful appearance and is simple and generous. The concealment of air purifier can shield illegal recording.

Air purifier version recording shield is a new product of recording shield series. It is suitable for leading office, small meeting room and other occasions.

AAT-007-NK3S 3-side is a product launched according to the needs of users. This product adopts 3-side signal transmission, that is, the three sides of the host can achieve a recording jammer within a range of 2-5 meters.

The air purifier version of the recording shield is a new product of the recording shield series, suitable for leadership offices, small conference rooms and other occasions.


The main advantages of this product are:


Good concealment: The air purifier is used as the appearance of the product, which looks exactly the same as an ordinary air purifier on the surface, and also increases the background noise, which is extremely concealed.


Stronger shielding effect: Compared with other products in the series, the output interference signal power is greater, so the noise signal picked up by the recording device is stronger, and the shielding effect is stronger.


Longer shielding distance: Compared with other products, its shielding distance is farther, and it is easy to carry and has good concealment. Generally, the shielding distance of better recording equipment can reach about 2-5 meters, and some recording equipment, For example, the shielding distance of some mobile phones can even reach more than 3-5 meters.


The coverage of equipment is wider: for the current mainstream recording equipment, the air purifier version of the recording shield can be shielded, and its coverage rate can reach more than 95%, which is much higher than similar products on the market
The shape of the product is well concealed, and it can be closer to the people who may record, and the effect is better!


performance parameter

Shielding type

Mobile phones, recording pens and other sound acquisition devices

Shielding distance

2-5m (shielding distance of different recording equipment is different)

Function angle

180 degrees

Number of transmitting terminals

60 Launching terminals

Opening mode

remote control





ambient temperature


relative humidity




Charging input

AC 100V~240V 

Charging output

DC 12v 10A

Packing instructions

Protective box