The first tip is to check the MERV ratings. It is important that you choose air filter with higher rating preferably from 5 to 14. The benefit of higher rating is that it has higher efficiency in removing dust and other contaminants. You find that their rating is guided by the ability to remover dust and contaminants in the air. How is it even possible that the filter that is rated 1 to work better than the one that is rated 20 and the ratings always start with one up to 20? That is not true. You should also know that there are some tough stains that can only be removed by air filters with higher ratings.
Cost of the air filter is another factor that should be considered. Normally the prices are set according to the efficiency of the air filter. You find that the ones that are highly rated tend to be very expensive than the once with lower ranks. One thing that should guide you in this is to weigh the price against efficiency. It is recommended that instead of purchasing cheap low-quality filters, you should find the ones that are affordable but they can remove the dust efficiently. Therefore, it is necessary that you shop around as look for the best deal in the market.
Size of the air filters is also another factor that you should consider. One important thing that you should know is the size of the existing air filter. You can do this by measuring the filter or just read since it is always indicated. Another thing you should make sure that the air filter you are choosing can fit well into the ventilation system of your house.
It is also important that you check the size of particles the filter can capture. In this you will be required to go for the one that can capture many dust particles. Even though it is not going to eliminate dust completely but it will reduce the chances of dusting the house frequently.
References can also help you in finding the best filters. With this you will get references from some of your friends that have used the air filters before. As a result, you will be in a position to select some of the best filters considering that they have been seen working before.
Another tip is carrying out some online prior research. This should be done through sites of dealers of air filter. You can use the ratings and the product reviews to come up with some of the best filters.