Human Respiratory System Model, Half Life Size, with Head, Throat, and Lungs Microscopy_Microscopy Equipment &Supplies 3 geometry stretching focal throw

3 geometry stretching focal throw for distant-screen projection of well-formed real images

large enough for whole-class visibility when tracing magnetic field lines around bar magnets

Regulated 12V output at 2A capacity supports experiments drawing higher current

Supplied as the seven most common classroom sizes

Wide-mouth reagent bottle in heavy-duty borosilicate glass holds 1000mL with glass penny stopper for chemical storage and laboratory handling

Human Respiratory System Model, Half Life Size, with Head, Throat, and Lungs Microscopy_Microscopy Equipment &Supplies 3 geometry stretching focal throwLongitudinal head throat lung cross section reveals the full air pathway from nostrils through trachea to alveoli at half life size for respiratory teaching.