How many types of hvac filters are there?

Fiberglass air filters are disposable and the least expensive type of filter. They cause less strain on HVAC systems when they draw in air and keep large particles out of the system. However, they don't do a good job of keeping dust and other smaller contaminant particles out. If you or a member of your family has allergies or respiratory problems, this type of filter may not be powerful enough to help alleviate or prevent respiratory problems.

It will generally have a MERV 4 rating. UV filters are used in air filters that can be integrated into your HVAC system. Using ultraviolet light, these filters remove viruses, bacteria and other microorganisms from the air that passes through them. However, they're not as efficient at removing dust and other contaminants, but they're great if you have questions about the indoor air quality that an air purifier can solve.

Fiberglass air filters are disposable, the most affordable but with the least warping capacity of all types. They work better to protect the air conditioning system than to filter dust and pollutants from the air. If you use this type of air filter, you may still be prone to respiratory problems. Washable air filters cost more than disposable ones, but they save you a lot of time in the long run.

They can be removed and cleaned, so there is no need to constantly replace them. Read the manufacturer's specifications on how to maintain filters of this type. Be sure to schedule cleaning in advance. Let it dry completely because if you use it when you throw it away, it will cause mold growth and bacteria to build up.

Electrostatic air filters use an electrostatic charge to attract dust and particles suspended in the air and then prevent them from spreading around your home. Some filters of this type are washable and there are also others that are not. The air filter medium is one of the most important variables because it influences filtration. There are some types of HVAC filters that are more common than others.

The two most common types of air filters for HVAC use are fiberglass air filters and pleated air filters. It comes standard on most HVAC units because it is extremely cost-effective, disposable and protects HVAC systems from dirt.