Breathing apparatus not for medical purposes, namely, rebreathers and respiratory masks, used to prevent the inhalation of noxious substances and pollution; computer software for breathing apparatus not for medical purposes, namely, for rebreathers and respiratory masks, used to prevent the inhalation of noxious substances and pollution and measuring air pollution; personal voice amplifying instruments, namely, amplifiers; voice actuated computer hardware; voice actuated computer peripherals; sensing apparatus other than for medical use, namely, temperature sensors, sound sensors, proximity sensors, pollution sensors; electrochemical cells for sensing gas; electrodes for chemical sensing; electronic guidance controls for breathing apparatus not for medical purposes, for pollution sensing, for use with rebreathers and respiratory masks used to prevent the inhalation of noxious substances; gas sensing devices, namely, devices for measuring and sensing the presence of gas; ultrasonic measuring apparatus, other than for medical use, namely, ultrasonic sensors; accumulator chargers; accumulator battery chargers; charging recorders, namely, electronic devices for measuring the amount of battery charge present in consumer electronic devices; temperature controllers for breathing apparatus not for medical purposes, namely, for rebreathers and respiratory masks used to prevent the inhalation of noxious substances and pollution; batteries; monitors, testers and systems used for measuring, recording and transmitting data, namely, transmitters of electronic signals; downloadable computer software, computer programs and computer applications for controlling breathing apparatus not for medical purposes; downloadable webcasts in the field of breathing apparatus not for medical purposes, namely, in the field of rebreathers and respiratory masks, used to prevent the inhalation of noxious substances and pollution; breathing apparatus for protective purposes, namely, rebreathers and respiratory masks, used to prevent the inhalation of noxious substances and pollution; lenses for protective masks for workmen; protective breathing masks other than for artificial respiration; protective breathing masks made of non-woven materials other than for medical or surgical use; protective clothing for use in cleanrooms for the prevention of accidents; safety helmets incorporating breathing apparatus; apparatus for breathing purposes, other than artificial respiration, namely, rebreathers and respiratory masks, used to prevent the inhalation of noxious substances and pollution; breathing masks, namely rebreathers and respiratory masks, used to prevent the inhalation of noxious substances and pollution; compressed air breathing apparatus namely, rebreathers and respiratory masks, used to prevent the inhalation of noxious substances and pollution; connections specially adapted for use with breathing apparatus other than for artificial respiration, namely, for use with rebreathers and respiratory masks used to prevent the inhalation of noxious substances and pollution; inserts specially adapted for breathing apparatus namely, for rebreathers and respiratory masks used to prevent the inhalation of noxious substances and pollution, other than for medical or surgical use; inserts for breathing masks, namely, for rebreathers and respiratory masks used to prevent the inhalation of noxious substances and pollution, other than for medical or surgical use; portable breathing apparatus other than for artificial respiration, namely, rebreathers and respiratory masks, used to prevent the inhalation of noxious substances and pollution; self-contained breathing apparatus, other than for artificial respiration, namely, rebreathers and respiratory masks, used to prevent the inhalation of noxious substances and pollution; ventilator breathing apparatus other than for artificial respiration, namely, rebreathers and respiratory masks, used to prevent the inhalation of noxious substances and pollution; anti-pollution masks for respiratory protection; filters for respiratory masks; respiratory apparatus, other than for medical use, namely, rebreathers and respiratory masks, used to prevent the inhalation of noxious substances and pollution; respiratory gas blending apparatus, other than for medical use, namely, rebreathers and respiratory masks, used to prevent the inhalation of noxious substances and pollution; respiratory helmets and masks, other than for artificial respiration; non-medical respiratory monitoring apparatus, namely, rebreathers and respiratory masks, used to prevent the inhalation of noxious substances and pollution; non-medical respiratory protection apparatus, namely, rebreathers and respiratory masks, used to prevent the inhalation of noxious substances and pollution; respirators other than for artificial respiration; ventilator exhalation valves specially designed for use with respirators other than for artificial respiration; compressed air emergency respirators other than for artificial respiration; respirators for filtering air other than for artificial respiration; laboratory purification apparatus, installation and machines, other than medical, for use in air purification; ventilation suits, namely, survival suits, biohazard suits, protective suits against accident or injury.

Medical apparatus for the treatment of breathing difficulties; protective breathing masks for medical applications; protective breathing masks for surgical applications; protective breathing masks made of non-woven materials for medical applications; protective breathing masks made of non-woven materials for surgical applications; respiratory protection apparatus for medical purposes; medical apparatus for use in respiration; inhalation protection devices for medical purposes; inhalation protectors for medical use; purification apparatus for medical purposes, namely masks for protection against airborne hazards for use by medical or surgical staff or other persons located within medical or surgical facilities and not being patient treatment devices; face masks for medical use; face masks for surgical use; high filter surgical masks.