When is it Time to Replace Your AC Filter? - An Expert's Guide

It's time to consider replacing your air conditioner filter when you can see dirt in the filter, it fails the “white leaf” test, you can't remember the last time you changed it, or you notice a musty smell. The general consensus is that you should replace your home air filter every 3 months, or 90 days. But what happens if you let that time go by for a while? Using an air filter with a MERV rating higher than that recommended by the boiler or air conditioner manufacturer can actually impair its performance. The only way to be sure how often your air filter should be changed is to visually inspect the filter every month.

Your home's air filters should be changed regularly to keep the system running smoothly and to maintain optimal air quality. After a period of smoke-filled days and poor outdoor air quality, inspect the air filter to see if it needs to be changed. In doing so, the filters must ensure that a good amount of air can still pass through, allowing you to enjoy good quality air and, at the same time, minimize the presence of harmful substances. Regular cleaning will keep the air conditioner working properly, and you can choose to change the filter every 15 days.

It is important to note that there are high-efficiency filters designed to filter small particles of bacteria, mold and fungi, but the standard MERV 8-11 filters only block the largest dust particles, namely 26% of the hair. This can be done by looking at the current filter size or by consulting the equipment manual to determine the correct specifications. Therefore, always respect the scheduled air filter change, which must be uniform if there are no changes in your home conditions. Over time, you'll have to fix this problem, and it definitely won't be cheaper than simply replacing the air filter in the first place.

When determining a replacement schedule for your air conditioner, consider all factors and decide what type and quality of filter you should use. In general, filters with a MERV 16 rating or lower are considered suitable filters for air conditioning systems for residential, commercial, and general hospital use. However, it is important to check your air filters once a month to see if they need to be changed. To ensure that only clean air comes out of the air conditioning system, replace the air filter before it clogs so you can breathe better.

Filters with higher MERV indices trap small particles more effectively than filters with lower MERV indices. As an expert in air conditioning, I recommend replacing your home's air filter every 3 months or 90 days. This will help keep your system running smoothly and maintain optimal air quality. It is also important to visually inspect your filter every month and replace it before it clogs. Additionally, make sure that you use an air filter with a MERV rating that is recommended by your boiler or air conditioner manufacturer.

This will ensure that your system runs efficiently and effectively.

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