"<p><strong>EXPOSURE CONTROL<\/strong><\/p>\r\n<p><strong><img src=\"https:\/\/perfexcrmx2.xtrazcon.com\/media\/Screenshot 2025-03-11 151153.png\" width=\"647\" height=\"281\" alt=\"\"><\/strong><\/p>\r\n<p>The idea behind this hierarchy is that the control methods at the top of the triangle are potentially more effective<br>and protective than those at the bottom. Following this hierarchy would likely lead to a safer work environment,<br>where the risk of illness or injury has been substantially reduced. Developing work procedures for a safe and<br>effective asbestos abatement project will likely require a combination of the control measures mentioned above.<br>For example:<br>Elimination \/ Substitution<br>Elimination and substitution, while most effective at reducing hazards, it can also tend to be the most difficult to<br>implement. When practical this will usually entail entirely avoiding the risk all together by elimination or<br>implementing major changes in equipment and procedures in order to substitute the hazard for a safer alternative.<br>Engineering<br>Engineering controls can be highly effective and provide workers with a higher degree of protection if<br>appropriately implemented. Typically, these controls are independent of worker interactions within asbestos<br>abatements. Such as, use of containment barriers systems, constructing decontamination facilities, utilizing<br>negative air units equipped with HEPA filters, misting with airless sprayer for elevated dust control,<br>Administrative<br>Largely involves planning, training and awareness for workers. Including but not limited to safe work procedure,<br>asbestos exposure control plans, risk assessments, worker training, fit testing, and record keeping,<br>Personal Protective Equipment<br>This is the least effective control. It must always be used in addition to at least other controls.<br>Personal protective equipment must always be used when working with asbestos. Respirators must be fit tested<br>prior to use. The selection of an appropriate respirator & face piece, is based on the assurance that the maximum<br>use concentration for that respirator is not exceeded. Respirator selection and use will be in full adherence to<br>CAN\/CSA-Z94.<\/p>"