These planter boxes are made from Douglas Fir and are 12 inches tall, 24 inches wide. The longer one is 4 feet in length and the other is 3 feet in length.
Added this WEN air filtration system to my garage workshop. I can already tell it is taking a lot of the small dust particles out of the air. The car and surrounding areas don’t have that fine coating of dust in the mornings like I’ve grown accustomed too. There’s a two-stage filter arrangement. The outside filter is a 5 micron collector and the innside one is a 1 micron assembly.