When I did the vacuuming myself, I had a sealed, true HEPA system. It made a big difference. For the Roomba, I'm not sure it matters. I'm never around when the

When I did the vacuuming myself, I had a sealed, true HEPA system. It made a big difference. For the Roomba, I'm not sure it matters. I'm never around when the Roomba is running. I run it when I'm running errands or picking kids up from school. Or I'll run it in a bedroom when I'm in the office or vice-versa. I don't like the noise. Since COVID, I also have a HEPA filter in each room. If the Roomba kicks anything up: - If it lands back on the carpet, it will get it on the next pass. - If it doesn't land on the carpet, the air filter will get it. My allergies are a lot better with this setup than what I had before. However, the Dyson has a HEPA filter, but it's definitely not a sealed HEPA filter or "true" HEPA. Air goes around. The air coming out smells dusty. It's fine because it's only for things which the Roomba can't get to, but I'd be very unhappy with it as my sole vacuum cleaner. For what it does, it's super-convenient. I should also mention: I have a carpet washing machine too. I rarely use it (much less than I should), but it's a huge step up.