Face masks for use by health care providers; face coverings being sanitary masks for protection against viral infection; patient breathing system comprising a breathing circuit, connections to patient, fresh gas delivery circuit, and air recirculator; personal protective equipment, namely, masks for use by medical personnel and patients for protection against environmental pollutants, allergens, viruses, microbes, and dust particles; medical devices, namely, powered, air, personal respiratory devices in the nature of headbands, safety goggles and neckbands; Personal protective equipment, namely, protective headbands, safety goggles, and neckwear for medical use for protection against allergens, viruses, and microbes

Air purifiers; Air purifying units for commercial, civilian, medical, government and military use and component parts therefor; Air cleaning units; Air cleaning units containing an air filter and ultraviolet lights; Air filters for domestic use; Air filters for industrial installations; Air purification units; Air purifying apparatus and machines; Air purifying units for commercial use; Air purifiers for use in surgery, endoscopy, and medical applications; air purification system for personal airspace, indoors and outdoors; Air purification system for enclosed/indoor air spaces, being office spaces, hospitals, restaurants, fitness facilities, museums, schools, public buildings and facilities, courthouses