The air-Q and air-Q Pro use Wi-Fi at a frequency of 2.4 GHz. The device also has Bluetooth, although this will only be used to connect to additional, external air sensors (such as radon) which will be available later.
The air-Q supports channel bandwidths of 20 MHz and 40 Mhz.
In general, 20 MHz bandwidth would be optimal for the air-Q and all other devices with low data rates. If the air-Q has to use the 40 MHz bandwidth, it occupies several channels and is then disturbed by all WLANs on both channels.