It is essential to replace disposable oven filters every three months, but what happens if you let that time pass? Before we discuss when you should change your air filter, let's start with why. Depending on the filter, it may also need to be replaced every few weeks. Additionally, the air you breathe in and out of your home may necessitate you to replace the filter more often. Consult the filter manufacturer's instructions to determine the frequency of replacement. Fibreglass air filters are more affordable than the other two, but less efficient at capturing dust and particles from the air.
They usually need to be changed every 30 days or less. To make it easier to remember this important task, first learn how often to change your air filter. After a period of days of heavy smoke and poor outdoor air quality, inspect the air filter to see if it needs to be changed. When it comes time to buy new air filters for your HVAC system, there are a few things to consider. The Nominal Minimum Efficiency Value (MERV) rating of an air filter measures how effectively the filter prevents dust and other contaminants from passing through the filter and reaching the air stream.
As a precaution, try to wear a mask and gloves during this process, as a clogged air filter can ooze various contaminants when you touch and take a look at it. The only way to be sure how often the air filter should be changed is to have a visual inspection of the filter every month. Air filters rated MERV 11 or higher usually take three to six months to replace. With that said, you need to change filters regularly, as air quality will drop as often as the air purifier cleans a room every hour. Replacing filters regularly can help reduce air pollutants and reduce energy bills (estimates are based on a standard 1-unit pleated filter).
Air filters usually have a MERV (minimum efficiency value) that determines the type and size of contaminants the filter will work against. With this in mind, to ensure that your air filter is cleaner, you must consider all factors listed above to determine the best filter schedule for your space. HEPA-based air purifiers, activated carbon air purifiers, and electrostatic air purifiers will need filters. However, if you use washable filters, you can clean them and reuse them in your air filter.