Review on Flanders PrecisionAire 84857 011418 NaturalAire Eliminator by Daniel Elgee

Seems to work well. States a 90 day plan but I wouldn't go for a month. I like to buy 4 packs. I thought about regular deliveries. Amazon shipping is on the decline. The two outer filters were broken but still usable so I left them. I decided I didn't want them to be destroyed on a regular basis, so I decided against the repeat option.