The air filters on your HVAC system are a vital component, crucial to the performance of the system. This is why filters need to be well-maintained and replaced on a regular basis. Read on to find out more about what air filters are, how they work, and how you can prolong the lifespan of your HVAC system by taking care of them and getting regular maintenance for your system.
What is an HVAC air filter and how does it work?
HVAC air filters are the part of your industrial heating and cooling system that removes pollutants and particles from the air entering your HVAC system. They use synthetic fibres to collect small particles, dust, bacteria, pollen, and other air pollutants.
Whilst air filters are simple components, they’re also crucial at the apertures where air comes into your HVAC system. This air is either heated or cooled and then delivered to a room through ducts. The filter cleans the air before it’s pulled in and circulated, which means it immediately catches particles that would otherwise stay in the air.
How important are air filters?
Air filters trap dirt, dust, pollen and debris in the air and prevent you from inhaling the particles. In addition to improving the indoor air quality of your business, HVAC filters also keep this dirt from clogging up the system’s coils, improving the efficiency of the unit. Without a filter, your HVAC system couldn’t run as efficiently as it does.
Whether it’s winter and your business needs an industrial heating system, or it’s a hot summer’s day and you’re keeping things cool with an air conditioning or evaporative cooling system, having clean, well-maintained air filters are key.
How often should you change your HVAC filters?
Most HVAC system manufacturers recommend changing your system’s air filters every 90 days to three months. There are several signs to look out for that will tell you it’s time to replace your HVAC’s air filters.
1. Energy bills rising
If your HVAC system is costing more on your energy bill than it usually does, it may be due to dirty air filters than need replacing. The system is trying to compensate for their being clogged by working harder – leading to the increase in your energy bill.
2. More dust in the air
When an HVAC’s air filter is not working properly anymore, it won’t filter out dust and other pollutants as it should. While some dust is natural and unavoidable, it can mean your filter needs replacing if you’re noticing a higher amount than usual.
3. Visual clogging
There’s also value in visually inspecting your HVAC filter (if this is possible) which will quickly let you know whether the filter is too dirty or clogged up.
