\"The fact is that we don\'t have enough knowledge to prove that they are safe. I have a mobile phone and I have been using it but it can only take up to 5 minutes. Anyone who uses the phone for more than 20 minutes at a time needs to check the head. If you are worried about brain damage, you may want to send more text messages on your phonedon\'t!
In this regard, due to its modular design, the air Wall has obvious advantages over the air curtain (Fan, so-Known as the air pressure linear module, which works as a pressure vessel, special nozzles can be installed separately and connected with flexible air ducts). All above-The above components of the air curtain are placed in a separate housing, which greatly increases the size.