“Lasko FF305 Air Flex 2-in-1 20-inch Box Fan and Air Purifier in One with MERV10 Air Purifying Filter” Won’t be as good – but something is better than nothing! The filters here are 13-A – so I would buy one… Read More »I can’t bring in an air cleaner, but can bring in a fan – got any ideas?
The Corsi/Rosenthal Box is based on a 20″ x 20″ box fan. This is because the size perfectly matches with 20″x20″ filters. Some countries have no box fans. Round fans have been used to build the Corsi/Rosenthal Box. 20″ Box… Read More »Type of Fan
Quick Tip if your windows and doors open – at the VERY LEAST, open during breaks and lunches. Source: “If its cold, crack the windows rather than opening them fully and then open them wider to air the room periodically… Read More »We can only open our windows, but not if the children have to wear a coat? Natural Ventilation…
Next, we are going to make a fan shroud..a fancy way of saying we are going to block off the square corners, so just the round fan is exposed. This was discussed here by Jim Rosenthal. Short version – the… Read More »How to build the shroud
Any type of duct tape is recommended. Keep in mind that you can use the duct tape color to accessorize your DIY Air Cleaner. Please see the Gallery for lots of creative fun ideas.
20″x20″x1″ or 20″x20″x2″ MERV 13 filters are recommended. MERV 13-A filters are available here. Why 13-A? Because they are top of the line. If MERV 13-A filters are not available, the next filters recommended are MERV 13 filters from 3M . … Read More »Type of Filters
Translations by Emily Barnes Franklin – thank you! Click here to go back to all FAQ’s. Click here to go back to all FAQ’s.
