The answer to the cost of an air filter is that it can vary significantly depending on several factors. Generally, basic air filters for residential HVAC systems can range from around $5 to $50, with the higher end of that range for more advanced, high-efficiency filters.
The price of an air filter is influenced by the size, quality, and features of the filter. Larger filters, those with higher MERV ratings for improved air filtration, and specialty filters like UV or carbon filters will cost more. The type of HVAC system you have and the specific filter required can also impact the price. Getting local quotes from HVAC contractors or retailers is essential to determine the exact cost for your home.