TA Triumph-Adler LP 210 - Manual (Page 15)

Introduction 1
Laser Printer 200 Series 1-7
Safety label
Laser caution label
Ozone emission
Small quantities of ozone escape during the printing process. These
quantities do not represent a health hazard. In spite of this, you should
take care that the area in which the machine is located has adequate
ventilation, especially if you are printing large quantities of materials or if
the machine is being used continuously over a long period of time.