What benefits do you feel from having four filters? Not hating, genuinely curious. It's just never occurred to me to filter the air in my home aside from burning something on the stove or similar
Especially in autumn when the wildfires start up - even if it's many miles away there is a very noticeable degradation in air quality.
I have asthma and mild allergies triggered by pet dander and sometimes seasonal pollen and such. It's a 3 bedroom house. 7 rooms total. And we have pets, because we're dumb.
Ideally we'd have one filter for each room, but they're not the cheapest things, so we just keep them in the rooms where we spend the most time.
Do they work? They've had a positive impact on my asthma/allergies. Not a magic cure, but nothing is. Obviously, it is a part of a comprehensive strategy that includes vacuuming and so forth.
Side benefits of the filters are that they also cut down on dust accumulation on surfaces, and are somewhat effective at reducing odors in general thanks to the swappable charcoal filters.
(FWIW they used to go on sale for like $119 once in a while, in pre-COVID times. That's when we got ours...)
It's just never occurred to me to filter
the air in my home aside from burning
something on the stove or similar
If you're currently doing fine, then this doesn't seem like something you need....
If you take a look at the photos for the Blue Air 211 on Amazon, you can see how much it picks up. Mine was exactly like the photos. The pre-filter was completely covered in dust, and the inner filter was completely dark after 6 months of use.
It's not a necessity if you have the window open to move around the air,
Of course, I don't think an air filter like this would be very effective with the windows open.
I have asthma, allergies, and pets so.... yeah. Medium it is for me.