Can I use multiple attachments at once? September 03, 2021 04:51 Updated Only one set of attachments can be used per treatment. For example, you cannot use the Leg Attachments and the Arm Attachments at the same time. Related articles Normatec boot sizes How do I care for my Normatec? What is ZoneBoost™? Can I use the Normatec while I'm pregnant? What's included in the Normatec 2.0 system?