We have been buying these for years. When we had two cats, it was a god send. I changed them every two months for insurance and they worked really well. I would not switch.
I bought 3 of these 3 weeks ago to install in the 3 central A/C's in my home. They do very good work. The air is much fresher since i installed. Helps hide the dog and cat smells.
I've used this product (Filtrate Allergen Defense-1085) filter for my home H VAC system for the past nine (9) years and has never had a problem... Best product for me!
only filters I'll ever buy. great product, great value when bought as a multi pack(2). one for the winter months and one for the summer months while running our a/c.