Note: this product is external protective and does not protect against virus. Special for outdoor survival games (world-wide-ar GAME), Military training and film and TV shooting.
(the filter tank is a battery storage and fan system, and it has no filter function. Please open it according to the instructions when disassembly, otherwise the store will not pay any compensation for any man-made damage. Please take a look at the instructions carefully.

Model: M04
color: black,Green,sandy
Size: average size, 19cm long and 17cm wide
Weight: about 380g/ piece
Specifications:This mask is divided into two parts: part 1, face shell--Part 2, \"filter canisters\"

Note: two no. 5 batteries are needed to drive the fan circulation system in the filter canister, and the batteries need to be purchased additionally, thank you!
Simple anti-fogging method for eyeglasses: moisten the lens with water on both sides of the lens. Some people will fail after applying 1 face) evenly apply the detergent and wipe it off with paper towel to maintain the anti-fogging effect for a long time.

The inside of the \"filter tank\" is the complete set of fan system. After purchase, first press the \"OPEN\" button on the back of the tank and then pull off the box cover and put it into the battery cover. The \"filter can\" can be installed with the left or right side of the shell to achieve more comfortable aiming action according to personal aiming habit.
Press the delay switch on the back side of the filter can start the fan to circulate air flow in the mask and quickly remove sweat and mist. The circuit will be automatically shut down every 8 minutes to prevent damage caused by forgetting to turn off after the game. After stopping, you can continue to press the switch to start or stop the switch halfway. No need to remove the battery when not in use, standby working current is in a state of sleep (less than 5VA)
The headband adopts the unique design of \"chief\", which makes the wearing of the mask more comfortable, stable and convenient!