WLNAY99V9:
1. This model is horizontal, portable, and has no hook;
2. It has an independent metal switch + line control to control the smoke mode and air mode;
3. There is an independent oil drain port on the back of the machine.
LYO241:
1. This model is vertical, with a hook, and no hand-held;
2. Use the switch to control the air mode and smoke mode;
3. If too much smoke oil is added, it needs to be discharged from the refueling port.
By vevor
