Bests & Worsts Reviews from Amazon

Excellent filters - the cost to performance ratio on these is basically unheard of. No frills, no brand names, just top notch performance. Filters are put into our units and closed up to collect all the nasty stuff we don’t want blown around our house. As others have said, fancy packaging means nothing. One word of caution: you probably already know that these filters have a high MERV rating of 11. This is great to grab microparticles from the air and will undoubtedly help allergy sufferers. However, a higher MERV rating means more resistance for airflow. Many furnace systems are not capable of generating the air flow required to maintain proper operating efficiency with this resistance. To illustrate, my furnace runs wonderfully with a new filter. The issue is that it begins “short cycling” after approximately 3-4 weeks of these filters being in place. I realize many change out filters this often (as do I), but if airflow is restricted enough to cause short cycling when the time to change the filter out, damage to the furnace is already being done. Clearly this is no fault of the filters, it’s simply a symptom of a blower that’s not up to the task on my unit. The solution, as much as my allergies hate me for it, is to buy filters with a lower MERV rating. It is what it is. Just a word of caution to check your furnace’s specs to make sure it can handle these filters, and if your unit is aging, perhaps consider a filter with a lower MERV rating.