Scientific apparatus and equipment, namely, environmental simulation test chambers; environmental test chambers, namely, temperature and altitude simulation equipment; electronic sports training simulators; laminar flow measuring apparatus, namely, air flow sensors; laminar flow biological safety cabinet hoods for laboratory use; automatic altitude indicators; programmable electronic controllers for environmental simulation test chambers; controllers, namely, electronic controllers for environmental simulation test chambers; thermal controls, namely, thermostats; pressure controls for controlling pressure in environmental simulation test chambers; temperature controllers for controlling temperature in environmental simulation test chambers; temperature controlling apparatus, namely, temperature controllers for environmental test chambers; instruments for temperature control, namely, thermostats for controlling temperature in altitude generators and sports training simulators; temperature measuring instruments, namely, thermostats for measuring the temperature in altitude generators and sports training simulators; air temperature sensors; humidity measuring apparatus; Environmental monitoring equipment, namely, humidity meters, sensors and switches for controlling the temperature, humidity, pressure, and light within environmental simulation test chambers; apparatus and instruments for controlling and regulating temperature, humidity, altitude and oxygen airstreams in environmental test chambers and sports training simulators; software for simulating, controlling and regulating temperature, humidity, altitude and oxygen airstreams; software to control building environmental systems; augmented reality software for use in mobile devices for integrating electronic data with real world environments; oxygen regulators for regulating the amount of oxygen within environmental simulation test chambers; oxygen controlling apparatus for non-medical purposes for controlling the level of oxygen in environmental simulation test chambers; oxygen sensors, not for medical use; hyperbaric oxygen chambers for non-medical purposes; atmospheric oxygen monitors; respirators, other than for artificial respiration; breathing apparatus, except for artificial respiration, namely, breathing apparatus for use during participation in high altitude sports, and for use within environmental simulation test chambers and altitude simulation equipment; inflatable apparatus for use with fittings of breathing apparatus in environmental test chambers and sports training simulators, namely, inflatable flotation devices; inflatable apparatus for life-saving purposes; functional generators, namely, pulse generators in the nature of electronic circuits incorporating automatic altitude indicators being part of and for use with environmental test chambers and sports training simulators; digital functional generators, namely, pulse generators for testing electric current; generators incorporating automatic altitude indicators being part of and for use with environmental test chambers and electronic sports training simulators; protective masks; breathing masks, namely, oxygen masks not for medical use; respiratory masks, other than for artificial respiration; non-medical respiratory mask filters; respirators other than for artificial respiration for filtering air; oxygen masks, not for medical use; life-saving harnesses, namely, safety harnesses other than for vehicles or sports purposes