It’s a little spendy, but I got [this](https://www.homedepot.com/p/Honeywell-PowerPlus-HEPA-Air-Purifier-Extra-Large-Room-530-sq-ft-Black-HPA3300BV1/312232605HoneywellPowerPlusHEPAAirPurifier,Extra-LargeRoom(530sq.ft.)BlackHPA3300BV1-TheHomeDepot) air purifier with a HEPA filter when doing renovations in my older home. It works well on days like this, and also helps overall with my allergies.
I have both and have been using them for the last month. Both are nice and work well. The V1 is suited for smaller rooms. I found it works well for rooms smaller than 200sqft. Also if you don't have air tight rooms or a room near a balcony, the V1 struggles. If you have a larger room or like to keep the window/balcony door slightly ajar, then the V5 is much better. It also has app integration and a pm2.5 display. If you have the money, get the V5. Otherwise the V1 also works great. If your room is quite air tight, then there is very little difference in their performance.
I’ve tried a few and the germ guardians are the best bang/buck. The big Honeywell ones if you have to do a BIG space. We have a Dyson and I don’t love it.
Mine is a Honeywell. Because I know I'll be able to continue to get filters (even if I do buy off brand ones, bc theirs are SO expensive). Standard filters is the way. The A+ prefilter is better than the standard softer A style, but both are good at catching cat hair (I vacuum it off regularly)
Honeywell makes standard styles/sizes (mine uses two R filters) and other companies use the same system so it's easy. You can also search by model number (ex hpa 200)
These are what I bought last time: https://ebay.io/m/JRqZjg
mads_61
