Hello internet. 😊
With decades in IT and the medical field combined we decided to share our Best of the Best list.
Enjoy, being healthy and save much money. 💰💰💰.
Best Home Air Filter – DIY 3M 20×30 MERV 14 Corsi–Rosenthal Box
Four 20×30 3M MERV 14 Filters
20″ Box Fan
Masking Tape
Pros
Keeps PM1 and PM2.5 at zero.
Last months without need to replace.
Inexpensive – depending on sales as low as $50 or less
Filter size is in many cases 6 times or more larger than the competition
In the bedroom becomes “white noise” machine
Cons
You have to make it yourself (10 minutes)
Noise when use in the bedroom etc.
Depending on skill unfinished look.
Here is a guide to build your own.
https://youtu.be/hIuH-2naozI
Competition
Blue Pure 211i Max – $349 (Wirecutter Pick)
Coway Airmega ProX – $999 (Consumer Reports Pick)
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