I bought a portable air purification plan a few weeks ago… And while it does what it is supposed to do, sometimes it does not work absolutely well. This would happen when the air quality outside is super bad. At these times it does not matter how several portable air purification systems you have in a room, they are just not strong enough to combat that kind of bad air quality, for this, a whole house air purification plan is more suited. With a whole house air purification plan you can combat most any bad air quality situations, how do I guess this? Because a neighbor of mine has a whole house air purification system. He is lucky enough to have the kind of currency to afford one. I can’t afford it, which is why I had to settle for portable air purification systems that sometimes work plus sometimes don’t. The best course of action I was able to take against the bad air quality was to have 2 portable air purification systems running in the same room at the same time. This did not completely clear the bad air quality, but it made it more bearable to where my allergies did not go super nuts. It made my allergies absolutely minimal, which was a nice thing. So for now until I can afford a whole house air purification plan I will just have to keep doing what I have been doing with the portable air purification systems plus just simply hope for the best possible outcome they can provide!