What kind of filter should I use?

If you purchased your air cleaner from GeneralAire® you should use the same filter for replacement that came with your system.

You don’t have a GeneralAire® air cleaner? We also offer filters that fit other manufacturer’s systems. Go to our home page under products…air filters… to find a replacement filter media that fits your needs.

Overall: use an air filter that offers the highest level of efficiency without damaging your HVAC system. Air filter efficiency is the measurement of how well the filter removes particulates from the air before it enters the air handler; known as a MERV rating. A MERV-rated air filter “cleans” the air by serving as a physical barrier to particles hanging in the air. A pleated air filter provides greater surface area to trap particles than a flat panel filter and will thus capture more particles.