How Often You Should Change Your Air Filter

With the rapid development of economy, no matter commercial buildings, production workshops, or living houses, they are all important places for people to live. Air environment is closely related to people's healthy life, and is also the focus of attention in the 21st century - air environment.

How do you ensure a clean air environment in commercial buildings, manufacturing plants, and residences to provide a safe place for your customers and your staff to play or work?


Perhaps we have already taken a series of protective measures for this, installing a new air system, purchasing primary filters, medium filters, HEPA and ULPA(Ultra Low Penetration Air Filter), which are in operation.

However, 82% of people forget to maintain their new air system and fail to change their air filters regularly. This can lead to a myriad of problems that can affect your HVAC system and your health.

So, the question - how often should you clean or replace your HVAC air filter?

As you may have guessed, the answer may vary depending on the type of space you use and other factors in your work environment.

Read on to learn more about how often to change air filters in your building, store or even restaurant.

How often should you change your air filters?

Of course, how often you need to change your commercial air filters depends on many different factors.

You need to consider the environment in which the air filtration system will be used - a commercial building, a manufacturing plant, or a living residence? How many people are in these use spaces, any chemicals or allergens that interact with them on a regular basis, or even the kinds of things you produce in them, etc.

Here, let's take a look at common commercial spaces and the time to change air filters in filtration systems.

Office Buildings

If you are in a standard office building environment, how often should you change your commercial air filters?

In most cases, filters are changed regularly about three to four times per year. If there are more people in the same environment, or if the people working for you have weakened immune systems or allergies, you may need to change them more frequently and regularly.


In an ordinary office environment, just simple pollutants such as odors, dust, pollen, hair and even fibers from clothing can still affect your air quality. In fact, even dead skin particles dropped by the human body can contribute to poor air quality in your office!

If you notice your team members, who keep sniffling in the office or call in sick, you should be aware that the filters in your office environment need to be maintained.

Industrial facilities or factories

If you work in an industrial facility or factory environment, you should be aware of the need to frequently change the industrial air filters in your industrial air filtration system. 

Industrial facilities or factories are typically the type of heavily polluted spaces where a large number of industrial particulate pollutants are inevitably produced in the production process layer. These particles cover aerosols, chemical particles, dust particles, smoke, etc., thus causing serious physical and mental health problems to the human body, which, if left unattended, can lead to susceptibility to serious diseases and even death over time.

Therefore, this is the type of space where you need to pay close attention to proper replacement and maintenance of air filters.


Generally speaking, air filters in industrial facilities or factory premises should be changed or cleaned once a week. Only then can you better protect the health of your employees and improve productivity. Remember, you may also need stronger and higher quality air filters than other spaces.

You need a comprehensive unit that can handle fumes, smoke, contaminants and more.

It protects your employees from potential hazards and even life-threatening situations.

Restaurant or cafeteria

If you are in the restaurant industry, then you need to comply with strict rules regarding sanitation, which is also a national requirement for restaurant openings.

In the restaurant industry, you always spend a lot of time keeping your food and dishes clean and sanitary, but if the filtration system in your restaurant is not filtering properly or effectively, then the dirt or dust layer spread around will spill all over the restaurant space and all the work you are doing is basically a waste of time.

Therefore, you should regularly check your restaurant's filtration system every four to six weeks to clean or replace the air filters. We highly recommend checking the filters at the end of each week for proper operation or for heavy debris to keep your dining room or cafeteria tidy.

If in doubt, consult a professional organization for help, and you should also ask them if there are better ventilation system options for preparing food in a commercial kitchen.

Boutique or pet store

If, for example, you are the owner of a smaller boutique or pet store.

According to our years of research on air ventilation systems, it is generally necessary to change commercial air filters reasonably every twelve weeks.

At the same time, you also need to consider the operation of the store, such as: the flow of people, the level of air pollution, the number of pets and other factors.

If you don't want your pets to be uncomfortable due to air pollution, or your store to close because the air is not clean enough for customers to come in and buy items.

Remember, in the event that you feel any of the above situations arise, it may be due to clogged and dirty air filters.


Replacing Commercial Air Filters: Summary

We hope this article gives you a better understanding of the question "How often should you change your air filter?" This question

Keep in mind that how often you should change your air filter usually depends on what you are doing in your commercial space and the environment you are in, and it is also influenced by the type of filter you are using.

Want to invest in the ideal commercial air filter for your business? We can provide you with the most professional options.

Browse RT Air Filtech extensive information on air filter products to find the right choice for your business. If you have any questions while shopping, please feel free to contact us.

You can breathe easier, even when you're working. Let us help you make it happen!

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