Respiratory filter types used as part of an “Air Purifying Respiratory System” should only be used when there is at least 19.5% oxygen in the
The first effective filtering activated charcoal gas mask in the world was invented in 1915 by Russian chemist Nikolay Zelinsky (I wonder if he’s related
pH7 is the New Zealand distributor for CleanAir and STS Shigematsu respiratory equipment. To help you make an informed decision when it comes to respiratory
Is welding dangerous to my health? Health hazards from welding, cutting, and brazing operations include exposures to metal fumes and to ultraviolet (UV) radiation. Exposure to welding
4 Tāwharau Lane
East Tamaki
Auckland
2013
