Do I add or remove the butter blade?

Nope, the premium butter blade is permanently affixed to the single-use scalpel. 

Once finished using , discard the handle with the blade attached in a sharps box according to Fed, State and Local medical waste regulations. 

Do I need to clean or sterilize Single-Use Lumohs?

Nope, it comes sterilized and can be used directly out of the pouch on on to the skin

How long will the battery last?

If you turn the switch on when using and off when not using , you can prolong the battery life of your handle. Keep in mind though, each handle should not be re-used and is meant for single use on one patient/client only. It should not be shared. 

If you ran single use lumohs continuously it will likely last between 30 and 45 minutes. 

How do I turn light on and off?

At the rear of the handle is an on off switch, just toggle it up and light will turn on and toggle down and light will turn off

How many handles come in a box?

Ten