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High-efficiency air filters collect dust and particles very well, but they also need to be changed more frequently.

alert editor's pick
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OPINION: "Arizonans have long enjoyed an expansive right to make law via referendum, though doing so requires great attention to detail and a massive effort to collect signatures. This year, however, the Legislature is asking you to make it harder to have your say," writes Sybil Francis, president and CEO of Center for the Future of Arizona.

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Manufacturers advise changing your air conditioner’s filter once every three months, but that’s not enough in Arizona.

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Like your car, your HVAC filter is key to keeping your unit’s components running smoothly and efficiently.