I do however, supply, sell and service the BMC range of sleep apnea equipment, because it is simply a better priced alternative to the other brands. BMC is registered on the Australian Therapeutic Goods Administration (TGA) Register of Medical Devices. It is as safe and effective as all other CPAP and APAP machines. (All CPAP, APAP, VPAP, BiPAP and BPAP machines pump air).