Services like an air filter change are easy to do yourself.

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In addition, 6 of the 12 RadNet monitors we sampled had gone over 8 weeks without a filter change, and 2 of those for over 300 days.

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While your oil is changed, the sales associates will offer to change your air filter, perform a transmission fluid change and do a variety of other more profitable services in the hopes of increasing the profit margin.

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You should change this filter every 3 to 6 months -- more often if you have pets or live with a smoker, or if you or a loved one has allergies.

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As social change messaging continues to filter beyond marketing and into broader business objectives, communicating respectfully with the 85% of consumers who are female will no longer be optional for advertisers.

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With our client above, the change took 7 months to filter through all remote offices.

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The other thing that will change is that the tools to filter our streams will get easier to use.

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Imagine one of these on every exhaust pipe, with a filter that you get changed every time you change your oil.

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