How do they work?
Ozone generators kill smells by a process known as oxidization. They release ozone (O3) which is oxygen (O2) with an extra molecule attached. O3 is unstable when released into the air and the extra molecule splits away from the O3 and attaches itself to the nearest organic particles in the air, airborne moulds, bacteria and smells and oxidizes them. It physically removes the smell from the air. This split turns the O3 back to oxygen again (O2) so all that is left behind is the smell of fresh air.
Are they safe to use?
In very high concentrations, ozone can be harmful to humans if breathed in. The HydrOzone is designed for use in the home and is completely safe to use providing the instructions are adhered to. Ozone is effective at removing smells at a concentration of 50PPB (parts per billion). The UK Occupational Exposure Limit (OEL) states that ozone levels less than 200PPB are safe for long term human exposure. Each HydrOzone unit comes with a chart that allows the user to set the unit to produce the correct amount of ozone for the size of the room it is being used in. When set up according to this chart, the unit is producing 100PPB of ozone. Taking into account that some ozone will be lost through gaps in the room, through killing smells and coming into contact with surfaces, the effective level of ozone remaining in the air will be around 50PPB which is both a safe and effective amount.