- How does the Oxy-Angel work?
- What are Negative Ions?
- How can I tell if my Oxy-Angel is working well?
- Can Oxy-Angel purify second-hand smoke?
- Does the Oxy-Angel make noise when functioning?
- How long will the Oxy-Angel last with fully charged batteries?
- What is the Oxy-Angel’s effective range?
- Can I leave the Oxy-Angel turned on continuously?