Heat the moxa stick fully and make it carbonized. The carbonized stick is called smokeless moxa stick. Its usage is similar to the common pure moxa stick. (Figure A4)
Figure A3 Incense Moxa Stick
Figure A4 Smokeless Moxa Stick R2p4INtwxPXk9HCOBk/Zs6rZa2gK2g0CTS06LOr7+CJeD177VA3wsaAkhAzws85A