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The power vacuum hose is typically installed into the ductwork via a circle cut out which allows for the power vacuum to put the entire side of the ductwork under a complete and sound vacuum draw. By doing so, every vent attached to the ductwork will have a centrally created vacuum present for proper system containment. From there, various mechanical brushes are sent down the rounds to break and push all debris down to where the power vacuum is sucking. Afterwards compressed air ranging from 150 psi – 250 psi air washes anything left by the brushes, to thoroughly and completely clean the round. Once all of the supply/heat pipes are cleaned a variety of different brushes, air whips and blow back jetters are employed to source remove all of the bulk matter back towards the power vacuum. This method of cleaning is superior for actually ridding the ductwork of all loose contamination because there is typically no cleaning obstacles presented by the ductwork that the self propelled mechanical and air tools can’t over come, as well as the fact that the sheer power of the vacuums not only effectively keeps all the debris contained, but has enough power to pull this debris out of the system. Most thorough mode of cleaning where a positive effect such as increased HVAC system efficiency is realized, increased airflow from supply rounds is realized, less HVAC equipment parts failure is realized or increased part lifespan occurs elimination of foul odors presented by isolated incidents where dead animals are presented, animal liquid and solid excretions occur and odor emitting mold/mildew and bacteria occurs and in some cases dust reductions are noticed depending on the amount of contamination that is present in a ventilation system. After this method of cleaning is performed, assuming that the occupant maintains that furnace filter I previously mentioned to manufacturer recommendations, then cleanings may only need to be performed every 3 4 years or even longer if you invest in a high media filter unit. This method of cleaning is the safest form of cleaning in ensuring a reduced amount of mishaps and or errors at a jobsite occurs. Typically speaking, a company will use a glorified shop vac, various carpet cleaning hose attachments in conjunction with carpet cleaning machinery and or even a glorified shop vac with a spinning brush. Most contact cleaning companies will spend 30 minutes to 2 hours in attempting to reach as much ductwork that a person is physically able to reach.

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Easy, right?You can control a single sensor in the system, or you can group specific sensors and control them together as one unit. The benefit of this individual sensoring within the entire system is that you can know, within a few seconds, the exact sensor that was triggered and be able to respond effectively. OXA system is a wifi enabled cloud security alarm system including a wifi hub to which all the sensors will connect via wireless connection, door/window contact sensors, motion sensors, remote controller, and a waterproof doorbell button/panic button. There is also a built in strobe siren that sounds at 80 decibels, although you can customize what the alert is for each sensor. Because it is wire free, the system is easy to remove and take with you, if you want. Get it from Amazon: OXA Smart Wireless Sensor Alarm System. COOWOO ST30 Professional Wireless Smart Home Security Alarm System DIY KitView in galleryThis smart OXA sensor alarm system features a DIY installation in under 15 minutes. The entire system is easily set up with your smartphone simply by downloading the app, scanning the QR codes in the user manual, or through the app store/Google play. OXA is compatible with Amazon Alexa, allowing you to control the system with just your voice. Easy, right?You can control a single sensor in the system, or you can group specific sensors and control them together as one unit. The benefit of this individual sensoring within the entire system is that you can know, within a few seconds, the exact sensor that was triggered and be able to respond effectively.