A furnace filter is a device that is designed to keep a home comfortable and warm on cold days. It is also helpful in cleaning the indoor air. Purifying the indoor air is one of the effective ways of keeping allergies and respiratory conditions under control. Certain factors should be considered when buying a furnace filter.
Deciding on the type of the air filter to use is one of the critical steps. You can either choose a basic device or an advanced one. The advanced filters are well designed to remove allergens. The size of a device should also be considered. Buyers should aim for medium-efficiency filters that have MERV ratings that range from 8 to 13. These are devices can effectively clean the air at home. They are also helpful in reducing airborne dust, mold spores, smoke, and pollen. Doing this can greatly help you in easing respiratory health issues.
MERV Ratings of Furnace Filters
These devices have different ratings that make the selection process hard. Various manufacturers have come up with their system of rating these products. However, they are rating the same products s but with different measurements methods. Most of these ratings are based on the size and percent and size of the particles trapped.
Main Types of Furnace Filters
Fiberglass filter
They are also referred to as disposable fiberglass filters. They are made of fiberglass. They have wide spacing and course composition that prevent large particles from entering your furnace. However, these devices are not effective in purifying the air.
Pleated Filters
These filters are more effective than fiberglass models. They have a thick layer s fabric that increases the surface area for capturing airborne pollutants. They have a high MERV rating. These are high-efficiency and cost-effective filters that can trap small particles. They are an ideal option for homeowners who have allergies. These products can help you in saving time and money since they don’t need frequent replacements.
High-efficiency Pleated
This is regarded as the king of all filters. They are made of synthetic cotton. They are designed with a rigid metal grid that prevents leaks. They are quite expensive, but they have a high filtering ability.
Permanent Electrostatic
This is a self-charging device that is effective in attracting smoke and dust particles. It comes with cotton fibers which are helpful in attracting particles. It has a removable filter that can be reused and for eight years.