I have 4 portable air purification systems I had bought when I did a major paint job inside my house a few years back.
When you are doing any kind of indoor painting, it is always important to have good ventilation within the house. The good way to do this is to do all painting during the time of the year when it is either cold or just standard temperatures. You never want to do it in the hot summer time months of the year. Because you will need to have windows opened and have fans blowing. You would not want to be running your central air conditioning while having windows open because this will make your energy bills high. Even if doing it only for a week while you paint the house. The best thing to do is to also have some kind of portable air purification system while you have the windows open. By having a portable air purification system running it helps get rid of the toxins in the air from the paint while the cross breeze flows from the windows being open from all ends. I have 4 portable air purification systems I had bought when I did a major paint job inside my house a few years back. They really helped clear the air and make it so that I did not have to leave the house for a day. I use these 4 portable air purification systems now to help keep the indoor air quality good in my home when there is bad air quality outside. So it was not wasted money at all. The portable air purification systems came of use after I was done my painting of my home.