This smart sensor <a href="https://www.popsci.com/category/best-whats-new/"><strong>emails you</strong></a> when your filters are clogged, a common cause of HVAC inefficiency.
This smart sensor emails you when your filters are clogged, a common cause of HVAC inefficiency. Courtesy CleanAlert
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A clogged air filter can cause a home’s HVAC system to run for a longer period, increasing cooling bills by up to 15 percent. The FilterScan WiFi uses pressure sensors to monitor the airflow inside ductwork and identify clogged filters.

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