HVAC replacement companies often recommend HEPA filters because they can provide the highest level of protection when it comes to airborne particles. This filter is capable of capturing small microns and has a MERV rating of between 17 and 20, which means it can trap tobacco smoke and bacteria. Fiberglass threads are spun together to create this type of filter, which is one of the most common types of HVAC filters. It's one of the best types of air conditioning filters because it's cost-effective, disposable, and protects air conditioners and the furnaces from dirt.
Of the different types of air conditioning filters available, spun glass is one of the most effective. But if you're looking for an air purifier, a more advanced option would be more suitable. Fiberglass air filters are disposable and the least expensive type of filter. They cause less strain on HVAC systems by drawing air and keep large particles out of the system.
However, they don't do a great job of keeping dust and other smaller contaminant particles away. If you or a member of your family has allergies or has respiratory problems, this type of filter may not be powerful enough to help alleviate or prevent respiratory problems. It will usually have a MERV 4 rating. According to many home warranty companies, furnaces that use this type of filter must be changed every month to adequate maintenance.
There are standard sizes, but the exact size of the filter will depend on your HVAC system and specifications. This filter is made of pleated cotton fibers, which increases the surface area of the filter and traps more contaminants. Depending on the specifications of your air conditioning system and your personal air quality preferences, you have many different filter options. ASHRAE analyzes filters for particles such as pollen, dust, dust mites and smoke by determining the MERV rating of each filter.
These filters aren't known for improving air quality, as they can't force too hard and can only trap some dust and allergens. These filters are 2 to 3 inches deep and trap smoke, dust, pollen and microbes through electronic fibers that attract and trap particles. Filters with more pleats filter better than those with fewer folds and trap even the toughest allergens and contaminants, such as pet dander and mold spores. If you want to buy a higher MERV filter than the manufacturer recommends, you run the risk of burning your unit's fan and heat exchanger of air conditioning.
Air filters also help keep heat exchangers and oven coils clean, which can extend the life of the oven and keep it running efficiently. The best way to find out what size filter you need is to remove the existing filter from the HVAC system and check its dimensions on the filter frame. Some people need air conditioning system filters to keep the air free of allergens and other contaminants, while others only need a basic filter to do their job. While these filters have a low MERV rating, they are an excellent long-term investment for someone who doesn't have great preferences for HVAC filter types and doesn't need special filters.
Although fewer particles pass through the filter, the air conditioning system has to work harder to force air through the filter and into the house. However, one of the main advantages of a thicker air filter with larger folds is that you don't need to replace them with as much frequency.