Core Mini-P

My typical travel setup is two Ikea Uppatvinds. I tried Levoit Core Mini, but I think they underperform on CADR. Plus, the Uppatvinds are cheap, filter replacements are wonderfully cheap, the purifiers are way more durable than Levoit for being bashed around in travel, it takes 120 & 240V (which not all purifiers to), and they automatically turn back on after power outage (which levoits don't, and I've had experiences where I come back to a hotel room that had a short power blip and now need to run purifiers for a while to turn over, which is annoying). I use two uppatvinds so that I can position one in the sleeping area and one by the door/bathroom. Two uppatvinds can fit in a carry-on bag with a little space for some clothes to pad it out, which is really all I need for most trips. If I need more space, I will check a bag (or often take a flat-pack duffle to check on the way back if I'm bringing souvenirs). Ideally, I carry one in my backpack in case my carryon gets gate checked and then becomes lost or inaccessible during a missed connection. (I once had an unexpected layover after checking my purifiers, which lead to a frustrating night of needing to stay masked in an unexpected hotel room... so I prefer to avoid that if possible.) I leave the purifiers in the bag all flight and rely on my N95. It's a quantitative fit tested KN100 that I use. For me, it's simplest to just have one layer of protection that I trust. I use the mask for concerts, travel, work, presentations, whatever... best N95 quality and fit I can find, then just use that consistently and effectively. I do open the air vent above me to try to get filtered air towards my head. Alas, sometimes I have to deal with real long legs (e.g., have done LAX-SYD, AMS-TPE, ICN-DTW; routinely doing east coast to europe). I'll try to get a layover long enough to leave the airport to take a meal outside, rehydrate, etc where possible, but it's not always an option. If not, I'll do what I can to sneak under-mask meds, water, or bites when needed using the method. I try to make this lower risk when I can (e.g., if there are any noticeable symptoms around me on the plane, I get up and walk to the galley if I need to take meds; look for the most empty/massive area in the terminal; etc). I tend to just rely on the two air purifiers, but I try to do a quick estimation of how long it would take to change over the air, and then give it 2-4x that time if possible before unmasking. Usually I will check in, set up the purifiers, then head out to meetings or to explore the city to give it a few hours to turn over. When possible, I will also block return air leaving from my room (usually bathroom vent) to avoid sucking in air from the hallway. I'll eat outside on patios, take takeout to a park or bench, etc. I do not treat enclosed patios as patios... I'm looking for good air movement. Ideally, I try to eat on the up-wind side of the patio if possible, to go at quieter hours, etc. I think that hit all your questions, but let me know if I missed any or created more!