Good product and they last along time.. def durable, but tech support really burnt my views on re-buying anything from them by when I called direct to the company and asked about why their oil was out of stock everywhere, the rep or w.e. I was talking to said they were restocking and he offered to ship me a temp amount and a resolution . I was satisfied but I waited and waited, and than months later I tried to recall him , noone Picked up and they never recalled.
I own (3) 8 inch versions and (1) 10 inch, they last for along time but key is to log your usage and rinse and clean them every 3-6 months . since company wouldn’t solve the issue I just apply hemp oil or no thing if indoor intake
As a side option or if you haven’t bought it yet,you can always get a nice rated filter and connect it to ur end of ur ducting, just have a roof and make sure it doesn’t get wet.
love this model , it a awesome filter for multi prevention,defense and filtering.
The Filtrete 2800 Ultrafine Filter 2 Pack is the new top of the line air filter from 3M. No competitor's 1" filter performs better than the Filtrete 2800 Ultrafine Particle Reduction Filter.
www.iallergy.com
example of someone filter + duct (roofed)