Roof Air Conditioner Filters

[brown774]

Just cleaned the filters and wondering if there are any more efficient filters. My wife has pulmonary issues and we would like to use the most efficient filters approved. Currently we have the flimsy filter cloth installed.

[wolfe10]

What brand and model A/C-- quite a few different style filters out there.

[tbutler]

Lowe's and Home Depot, other large hardware dealers have filters that can be cut to size. I can't remember the brand now but you will find them with other furnace filters. I purchase one of these and cut them to fit our rooftop air conditioners. The ones I get have a two stage filter, particle and carbon filter for odor. The filters we use come with a plastic grid that can be cut to size and provides backing for the filter to keep it in place if necessary. There are also filters like this for allergies. Remember if you put in a better filter it will collect more material. You will need to replace the filter more frequently to allow the air to move freely through the air conditioner. I replace ours about 4 times a year depending on how much time we are traveling.