When you have appealed as far as possible, you can consider appealing to the U.S. Supreme Court. If you decide to appeal to the Supreme Court at this stage, the next step is to prepare a petition for certiorari. This is the document the Court will read in order to decide whether to hear a case.
Commercial applications have an even broader spectrum of change-out frequencies. Air filters in restaurants are commonly changed every 4 to 8 weeks depending on the customer traffic and filter type.. Retail chains, strip malls, and other small businesses vary, but usually are in need of a change every 12 weeks.
Here are just a few of the factors that can affect your filter change schedule: Number of humans and pets and the type of pets in the house. How often humans and pets enter and leave the house. Whether you have carpet or hard floors. How often your home is cleaned. Air leaks in your duct system.