Bissell air400

“I’ve spent countless hours researching air purifiers due to a complicated set of health issues, so I hope I can offer some useful insight. I’ve owned four different models and have learned quite a bit through first-hand experience. One thing I can’t stress enough is the importance of a **pre-filter**. It plays a key role in extending the life of your main filters—especially helpful if you have pets like a cat. The pre-filter captures larger particles like dust, pet hair, and debris before they reach the HEPA and carbon filters, which cuts down on maintenance costs over time. I clean mine every 7 days, and I’ve found that doing so helps the unit run more efficiently and keeps the other filters in good condition much longer. It’s a quick and easy routine once you get used to it. For your space, the Coway Airmega 400 is a great choice. While I personally own the smaller model, the 400 is well-suited for larger rooms. To clean the pre-filter, you just pop off the front panel (it may be magnetic or have a small latch), rinse it off, let it air dry, and snap it back in. Super simple, and it makes a big difference”