Air filters for medical ventilators; Apparatus for artificial respiration; Apparatus for DNA and RNA testing for medical purposes; Artificial teeth; Blood pressure measuring apparatus; Body rehabilitation apparatus for medical purposes; Braces for teeth; Brushes for cleaning body cavities; Catheters and parts and fittings therefor; Chiropractic instruments; Cut-off and abrasive wheels for dental purposes; Dental apparatus, namely, apex locator; Dental handpieces; Dental instruments, namely, root canal therapy instruments used to shave the inside of a root canal; Dental and medical drill bits for cutting teeth or bone; Electromedical rehabilitative and pain management products for clinical and home use, namely, electrical nerve and muscle stimulators, ultrasonic stimulators, magnet therapy stimulators and laser therapy stimulators; Hearing aids for the deaf; Medical devices and apparatus, namely, medical guidewires and parts and fittings therefor; Oxygen monitors for medical use; Patient breathing system comprising a breathing circuit, connections to patient, ventilator, scavenger, fresh gas delivery circuit and carbon dioxide absorber; Ultrasound appliances for dental and medical use