Anyone use an air purifier at home, living with COPD?

I don't have COPD but I can recommend https://www.aprilaire.com/whole-house-products/air-purifiers
I also use rabbit air https://www.rabbitair.com/ for room to room.
You can buy more efficient air filters for your existing unit. This link is to the merv ratings https://www.filtersales.com/blog/what-is-a-merv-rating/
And you can buy Hepa filters.
It's possible to spend a small fortune on filters.

I am not fully educated on it but I constantly see in one of my support groups not to buy an ionized whole house filter. I looked up April Aire and they have one model that is ionized. The others are not. I have COPD and have an IqAir hepa filter in my bedroom which is great but it is big & bulky. The filters aren’t changed often but they are expensive.

Yes, you will benefit from a good air purifier with HEPA filters and Charcoal pre-filter such as Winix. AVOID Ozone at all costs, it is like sunburn to your lungs. Damp mop hard floors weekly to keep dust down. God Bless.

I always had a couple of them (room size) at my office, if for no other reason than to placate my staff. My daughter (Ms. Practical since childhood) thought I should have one at home, so she bought me a YIOU, model P1802, which sits in my living room, pretty much midway in my house traffic pattern. As a reminder to maintain it, she also has arranged for delivery of a new HEPA filter every month. It's pretty sensitive - shows a little green light when everything is OK, but should I fry some bacon, for instance, the light turns red until the offending particulate matter is dealt with. Looking at the swapped-out filter every month shows me that it's really working!
Also, for sure, change the filter on your central a/c monthly!

I don’t intend to be an advertisement but have a small Levoit 300 in every room. HEPA. Easy to change different filters for smoke, smells, pets, etc.. Adjustable noise and speed. Other brands may be just as good. A little pricey but lungs and clean air outweigh that. I agree keep your house ducts and HVAC filters clean. Why not?

I have two small air purifiers. One for each level, and a small one in my bedroom. Does it help, I truly cannot answer that. Since I don’t open windows for fresh air, I’m hoping they work.
I live in Utah, and the air quality is not the best.

We h as we two rabbit air air purifiers in our home. They work ok. The filters are expensive & should be replaced regularly, but seem to catch quite a bit.

I have been running 5 Alen units 24/7 for the last 25 years . I upgraded to their latest model the "Breath Smart 45 a few years ago. Each have a light on the top that that indicates the air quality blue when its good and different shade till its red when bad. I've never had one to fail. I've had people with alleges come in sniffling and in 20 minutes stop. I monitor my air quality electronically in the family room and my bed room. A small shopvac will clean the filters as apposed to replacing them when there dirty.

Yes I’ve used a air purifier at home now for about a year and can’t say I noticed any real improvement but I figure it can’t hurt.

We have 2 air purifiers in our home. Can’t say I’ve noticed any difference.